SSC Quantitative Aptitude Average Question Bank

done Average (II) Total Questions - 52

• question_answer1)
  A batsman has a certain average of runs for 12 innings. In the 13th inning he scores 96 runs thereby increasing his average by 5 runs. What will be his average after 13th inning? [SSC CGL Tier II, 2017]
  A)
  28 done clear
  B)
  32 done clear
  C)
  36 done clear
  D)
  42 done clear
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• question_answer2)
  A team of 8 persons joins in a shooting competition. The best marksman scored 85 points. If he had scored 92 points, the average score for the team would have been 84. The number of points the team scored was [SSC CGL Tier II, 2017]
  A)
  672 done clear
  B)
  665 done clear
  C)
  645 done clear
  D)
  588 done clear
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• question_answer3)
  A librarian purchased 60 story books for his library. But he found that he could get 4 extra books by spending Rs. 336 more and then the overall average price per book would be reduced by Rs. 1. The previous average price of each book was [SSC CGL Tier II, 2017]
  A)
  Rs. 84 done clear
  B)
  Rs. 83 done clear
  C)
  Rs. 68 done clear
  D)
  Rs. 100 done clear
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• question_answer4)
  In an exam, the average marks obtained by John in English, Maths, Hindi and Drawing were 50. His average marks in Maths, Science, Social Studies and Craft were 70. If the average marks in all seven subjects is 58, his score in Maths was [SSC CGL Tier II, 2017]
  A)
  50 done clear
  B)
  52 done clear
  C)
  60 done clear
  D)
  74 done clear
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• question_answer5)
  The average weight of 3 men A, B and C is 84 kg. Another man D joins the group and the average now becomes 80 kg. If another man E whose weight is 3 kg more than that of D, replaces A, then the average weight of B, C, D and E becomes 79 kg. What is the weight of A? [SSC CGL Tier n, II, 2017]
  A)
  70 kg done clear
  B)
  72 kg done clear
  C)
  75 kg done clear
  D)
  80 kg done clear
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• question_answer6)
  The average monthly salary of all the employees in a factory is Rs. 8840. Number of officers in the factory is 150. If the average salary of all the officers is Rs. 15000 and that of the remaining employees is Rs. 8000, then what is the percentage of the officers among the employees? [SSC CGL Tier II, 2017]
  A)
  12% done clear
  B)
  15% done clear
  C)
  18% done clear
  D)
  20% done clear
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• question_answer7)
  A car covers four successive 7 km distance at speeds of 10 km/h, 20 km/h, 30 km/h and 60 km/h, respectively. Its average speed over this distance is [SSC CGL Tier II, 2015]
  A)
  30 km/h done clear
  B)
  20 km/h done clear
  C)
  60 km/h done clear
  D)
  40 km/h done clear
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• question_answer8)
  The average age of 30 students of a class is 14 yr 4 months. After admission of 5 new students in the class, the average becomes 13 yr 9 months. The youngest one of the five new students is 9 yr 11 months old. The average age of the remaining 4 new students is [SSC CGL Tier II, 2015]
  A)
  10 yr 4 months done clear
  B)
  12 yr 4 months done clear
  C)
  13 yr 6 months done clear
  D)
  11 yr 2 months done clear
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• question_answer9)
  In an examination average marks obtained by the girls of a class is 85 and the average marks obtained by the boys of the same class is 87. If the girls and boys are in the ratio 4 : 5, average marks of the whole class (approx.) is closest to [SSC CGL Tier II, 2015]
  A)
  86.4 done clear
  B)
  86.1 done clear
  C)
  86.5 done clear
  D)
  85.9 done clear
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• question_answer10)
  The average of five consecutive positive integers is n. If the next two integers are also included, the average of all these integers will [SSC CGL Tier II, 2015]
  A)
  increase by 1 done clear
  B)
  increase by 2 done clear
  C)
  remains the same done clear
  D)
  increase by 1.5 done clear
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• question_answer11)
  Average of n numbers is a. The first number is increased by 2, second one is increased by 4, the third one is increased by 8 and so on. The average of the new numbers is [SSC CGL Tier II, 2015]
  A)
  \[a+\frac{{{2}^{n+1}}}{n}\] done clear
  B)
  \[a+2\frac{{{2}^{n}}-1}{n}\] done clear
  C)
  \[a+\frac{{{2}^{n}}-1}{n}\] done clear
  D)
  \[a+\frac{{{2}^{n\,+\,1}}-1}{n}\] done clear
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• question_answer12)
  Three Science classes A, B and C take a Life Science test. The average score of class A is 83. The average score of class B is 76. The average score of class C is 85. The average score of class A and B is 79 and average score of class B and C is 81. Then, the average score of classes A, B and C is [SSC CGL Tier II, 2015]
  A)
  80 done clear
  B)
  81 done clear
  C)
  81.5 done clear
  D)
  80.5 done clear
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• question_answer13)
  The frequency distribution data is given below. If the average age is 17 yr, the value of m is

  Age (in yr)	8	20	26	29
  Number of People	3	2	M	1

  [SSC CGL Tier II, 2014]
  A)
  1 done clear
  B)
  2 done clear
  C)
  3 done clear
  D)
  4 done clear
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• question_answer14)
  The average monthly expenditure of a family for the first four months is Rs. 2570, for the next three months Rs. 2490 and for the last five months Rs. 3030. If the family saves Rs. 5320 during the whole year, the average monthly income of the family during the year is [SSC CGL Tier II, 2014]
  A)
  Rs. 3000 done clear
  B)
  Rs. 3185 done clear
  C)
  Rs. 3200 done clear
  D)
  Rs. 3580 done clear
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• question_answer15)
  If the average of m numbers is \[{{n}^{2}}\] and that of n numbers is \[{{m}^{2}},\] then the average of \[(m+n)\] numbers is
  A)
  \[(m-n)\] done clear
  B)
  \[mn\] done clear
  C)
  \[(m+n)\] done clear
  D)
  \[m/n\] done clear
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• question_answer16)
  The arithmetic mean of 100 observation is 24, 6 is added to each of the observations and then each of them is multiplied by 2.5. Find the new arithmetic mean.
  A)
  30 done clear
  B)
  75 done clear
  C)
  35 done clear
  D)
  60 done clear
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• question_answer17)
  If the average of 6 consecutive even numbers is 25, the difference between the largest and the smallest number is
  A)
  8 done clear
  B)
  10 done clear
  C)
  12 done clear
  D)
  14 done clear
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• question_answer18)
  The average of 11 results is 50. If the average of the first six results is 49 and that of the last six is 52, the sixth result is
  A)
  48 done clear
  B)
  50 done clear
  C)
  52 done clear
  D)
  56 done clear
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• question_answer19)
  A train goes from BaIlygunge to Sealdah at an average speed of 20 km/h and comes back at an average speed of 30 km/h. The average speed of the train for the whole journey is
  A)
  27 km/h done clear
  B)
  26 km/h done clear
  C)
  25 km/h done clear
  D)
  24 km/h done clear
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• question_answer20)
  The mean of 100 items was found to be 30. If at the time of calculation, two items were wrongly taken as 32 and 12 instead of 23 and 11, the correct mean is
  A)
  29.4 done clear
  B)
  29.5 done clear
  C)
  29.8 done clear
  D)
  29.9 done clear
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• question_answer21)
  The average of 6 numbers is 30. If the average of first four is 25 and that of last three is 35, the fourth number is
  A)
  25 done clear
  B)
  30 done clear
  C)
  35 done clear
  D)
  40 done clear
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• question_answer22)
  The average of 100 numbers is 44. The average of these 100 numbers and four other new numbers is 50. The average of The four new numbers will be
  A)
  800 done clear
  B)
  200 done clear
  C)
  176 done clear
  D)
  24 done clear
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• question_answer23)
  The average of 6 observations is 45.5. If one new observation is added to the previous observations, then the new average becomes 47. The new observation is
  A)
  58 done clear
  B)
  56 done clear
  C)
  50 done clear
  D)
  46 done clear
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• question_answer24)
  The average age of 24 boys and their teacher is 15 yr. When the teacher's age is excluded, the average age decreases by 1 yr. The age of the teacher is
  A)
  38 yr done clear
  B)
  39 yr done clear
  C)
  40 yr done clear
  D)
  41 yr done clear
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• question_answer25)
  The average of marks in Mathematics for five students was found to be 50. Later on, it was discovered that in case of one student, the marks 48 were misread as 84. The correct average is
  A)
  40.2 done clear
  B)
  40.8 done clear
  C)
  42.8 done clear
  D)
  48.2 done clear
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• question_answer26)
  The average age of 40 students of a class is 15 yr. When 10 new students are admitted, the average age is increased by 0.2 yr. The average age of the new students is
  A)
  15.2 yr done clear
  B)
  16 yr done clear
  C)
  16.2 yr done clear
  D)
  16.4 yr done clear
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• question_answer27)
  Sachin Tendulkar has a certain average for 11 innings. In the 12th innings he score 120 runs and thereby increases his average by 5 runs. His new average is
  A)
  60 done clear
  B)
  62 done clear
  C)
  65 done clear
  D)
  66 done clear
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• question_answer28)
  The average monthly salary of the workers in a workshop is Rs. 8500. If the average monthly salary of 7 technicians is Rs. 10000 and average monthly salary of the rest is Rs. 7800, the total number of workers in the workshop is
  A)
  18 done clear
  B)
  20 done clear
  C)
  22 done clear
  D)
  24 done clear
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• question_answer29)
  The average age 11 players of a cricket team is decreased by 2 months when two of them aged 17 yr and 20 yr are replaced by two new players. The average age of the new players is
  A)
  17 yr 1 month done clear
  B)
  17 yr 7 months done clear
  C)
  17 yr 11 months done clear
  D)
  18 yr 3months done clear
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• question_answer30)
  A train moves with a speed of 30 km/h for 12 min and for next 8 min at a speed of 45 km/h. The average speed of the train is
  A)
  37.5 km/h done clear
  B)
  36 km/h done clear
  C)
  48 km/h done clear
  D)
  30 km/h done clear
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• question_answer31)
  A man covers half of his journey at 6 km/h and the remaining half at 3 km/h. His average speed is
  A)
  9 km/h done clear
  B)
  4.5 km/h done clear
  C)
  4 km/h done clear
  D)
  3 km/h done clear
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• question_answer32)
  The average of first three numbers is double of the fourth number. If the average of all the four numbers is 12, then find the 4th number.
  A)
  16 done clear
  B)
  46 done clear
  C)
  20 done clear
  D)
  18 done clear
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• question_answer33)
  When the average age of a husband and wife and their son was 42 yr, the son got married and a child was born just 1 yr after their marriage. When child turned to be 5 yr, then the average of the family became 36 yr. What was the age of daughter-in-law at the time of marriage?
  A)
  26 yr done clear
  B)
  25 yr done clear
  C)
  24 yr done clear
  D)
  23 yr done clear
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• question_answer34)
  10 yr ago, the average age of a family of 4 members was 24 yr. Two children having been born, the average age of the family is same today. What is the present age of the youngest child, if they differ in age by 2 yr?
  A)
  1 yr done clear
  B)
  2yr done clear
  C)
  3 yr done clear
  D)
  5yr done clear
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• question_answer35)
  The average age of a husband and a wife was 23 yr when they were married 5 yr ago. The average age of the husband, the wife and a child who was born during the interval, is 20 yr now. How old is the child now?
  A)
  Less than 1 yr done clear
  B)
  1 yr done clear
  C)
  3 yr done clear
  D)
  4 yr done clear
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• question_answer36)
  The average of 5 consecutive natural numbers is n. If the next two numbers are also included, the average of seven numbers will
  A)
  increased by 2 done clear
  B)
  increased by 1 done clear
  C)
  remain the same done clear
  D)
  increased by 1.4 done clear
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• question_answer37)
  A batsman has a certain average runs for 11 innings. In the 12th inning, he made a score of 90 runs and thereby decreased his average by 5. His average after 12th inning is
  A)
  127 done clear
  B)
  145 done clear
  C)
  150 done clear
  D)
  217 done clear
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• question_answer38)
  The average of the test scores of a class of 'm' students is 70 and that of 'n' students is 91. When the scores of both the classes are combined, the average is 80. What is n/m?
  A)
  11/10 done clear
  B)
  13/10 done clear
  C)
  10/13 done clear
  D)
  10/11 done clear
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• question_answer39)
  The average weight of 8 persons is increased by 2.5 kg when one of them whose weight is 56 kg is replaced by a new man. The weight of the new man is
  A)
  66 kg done clear
  B)
  75 kg done clear
  C)
  76 kg done clear
  D)
  86 kg done clear
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• question_answer40)

  The average salary per head of all workers of an institution is Rs. 60. The average salary per head of 12 officers is Rs.

  400. The average salary per head of the rest is Rs. 56. Then, the total number of workers in the institution is

  A)
  1030 done clear
  B)
  1032 done clear
  C)
  1062     done clear
  D)
  1060 done clear
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• question_answer41)
  The average of \[{{x}_{1}},\]\[{{x}_{2}},\]\[{{x}_{3}},\]\[{{x}_{4}}\] is 16 Half the sum of \[{{x}_{2}},\]\[{{x}_{3}},\]\[{{x}_{4}}\] is 23. What is the value of \[{{x}_{1}}?\]
  A)
  17 done clear
  B)
  18 done clear
  C)
  19 done clear
  D)
  20 done clear
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• question_answer42)
  In a class with a certain number of students, if one student weighing 50 kg is added, then the average weight of the class increases by 1 kg. If one more student weighing 50 kg is added, then the average weight of the class increases by 1.5 kg over the original average. What is the original average weight of the class?
  A)
  2 kg done clear
  B)
  4 kg done clear
  C)
  46 kg done clear
  D)
  47 kg done clear
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• question_answer43)
  A cricketer played 80 innings and scored an average of 99 runs. His score in the last inning is zero run. To have an average of 100 at the end, his score in the last innings should have been
  A)
  10 runs done clear
  B)
  1 run done clear
  C)
  60 runs done clear
  D)
  80 runs done clear
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• question_answer44)
  A man spends an average of Rs. 1694.70 per month for the first 7 months and Rs. 1810.50 per month for the next 5 months. His monthly salary if he saves Rs. 3084.60 during the whole year is
  A)
  Rs. 2400 done clear
  B)
  Rs. 3000 done clear
  C)
  Rs. 1000 done clear
  D)
  Rs. 2000 done clear
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• question_answer45)
  The average of five consecutive natural numbers is m. If the next three natural numbers are also included, how much more than m will the average of these 8 numbers be?
  A)
  1 done clear
  B)
  1.5 done clear
  C)
  1.4 done clear
  D)
  2 done clear
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• question_answer46)
  The average of marks of 28 students in Mathematics was 50. 8 students left the school and then this average increased by 5. What is the average of marks obtained by the students who left the school?
  A)
  37.5 done clear
  B)
  42.5 done clear
  C)
  45 done clear
  D)
  50.5 done clear
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• question_answer47)
  The average score of a class of boys and girls in an examination is A The ratio of boys and girls in the class is 3 : 1. If the average score of the boys is \[(A+1),\] the average score of the girls is
  A)
  \[(A-1)\] done clear
  B)
  \[(A-3)\] done clear
  C)
  \[(A+1)\] done clear
  D)
  \[(A+3)\] done clear
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• question_answer48)
  The average height of the basketball team A is 5 ft 11 inches and that of B is 6 ft 2 inches. There are 20 players in team A and 18 players in team B. The overall average height is
  A)
  72.42 inches done clear
  B)
  72 inches done clear
  C)
  70.22 inches done clear
  D)
  70 inches done clear
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• question_answer49)
  The batting average for 40 innings of a cricketer is 50 runs. His highest score is more than its lowest score by 172 runs. If these two innings are excluded, the average of the remaining 38 innings is 48 runs. The highest score of the player is
  A)
  165 done clear
  B)
  170 done clear
  C)
  172 done clear
  D)
  174 done clear
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• question_answer50)
  The average of three numbers is 154. The first number is twice the second and the second number is twice the third. The first number is
  A)
  264 done clear
  B)
  132 done clear
  C)
  88 done clear
  D)
  66 done clear
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• question_answer51)
  The average salary of all the staff in an office of a corporate house is Rs. 5000. The average salary of the officers is Rs. 14000 and that of the rest is Rs. 4000. If the total number of staff is 500, the number of officers is
  A)
  10 done clear
  B)
  15 done clear
  C)
  25 done clear
  D)
  50 done clear
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• question_answer52)
  The average marks of 40 students in an English exam is 72. Later it is found that three marks 64, 62 and 84 were wrongly entered as 68, 65 and 73. The average after mistakes were rectified is
  A)
  70 done clear
  B)
  72 done clear
  C)
  71.9 done clear
  D)
  72.1 done clear
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