5th Class Mathematics Factors and Multiples Question Bank

done Factor & Multiple Total Questions - 30

• question_answer1)
  Which of the following statements is correct?
  A)
   Every prime number is odd. done clear
  B)
   Every even number is composite. done clear
  C)
   The sum of two odd numbers is always odd, done clear
  D)
   The HCF of two given numbers is always a factor of their LCM done clear
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• question_answer2)
  Find the number of multiples of 5.
  A)
   100                              done clear
  B)
   600            done clear
  C)
   700                  done clear
  D)
   infinite done clear
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• question_answer3)
  How many prime numbers are there "between 1 to 100"?
  A)
   25                                done clear
  B)
   24            done clear
  C)
   30                                done clear
  D)
   60 done clear
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• question_answer4)
  Which of the following is a perfect square?
  A)
   28                                done clear
  B)
   26             done clear
  C)
   25                                done clear
  D)
   2.4 done clear
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• question_answer5)
  What is the HCF of two prime numbers?
  A)
   2                                 done clear
  B)
   1              done clear
  C)
   40                                done clear
  D)
   None of these done clear
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• question_answer6)
  What is the LCM of 36, 75 and 80?
  A)
   3600                            done clear
  B)
   3500          done clear
  C)
   3400                            done clear
  D)
   3000 done clear
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• question_answer7)
  Product of two numbers = ___________
  A)
   \[LCM\times ~HCF\] done clear
  B)
   \[First\text{ }No.\times Second\text{ }No.\] done clear
  C)
   \[1\] done clear
  D)
   None of these done clear
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• question_answer8)
  The sum of the factors of 25 is
  A)
   7                                 done clear
  B)
   6 done clear
  C)
   31                                done clear
  D)
   26 done clear
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• question_answer9)
  A number is divisible by 24 if ___________
  A)
   It is divisible by 6 and 4 both         done clear
  B)
   It is divisible by 8 and 3 both done clear
  C)
   It is divisible by 12 and 2 both       done clear
  D)
   All of these done clear
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• question_answer10)
  Prime factorization of\[512\times 343\]
  A)
  \[{{2}^{9}}\times {{7}^{3}}\]                        done clear
  B)
  \[{{2}^{4}}\times {{3}^{2}}\] done clear
  C)
  \[{{2}^{4}}\times {{3}^{2}}\]            done clear
  D)
   None of these done clear
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• question_answer11)
  Determine the number nearest to 100000 but greater than 100000 which is exactly divisible by each of 8, 15 and 21?
  A)
   100200                         done clear
  B)
   100800         done clear
  C)
   240800            done clear
  D)
   260040 done clear
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• question_answer12)
  Let a, b, c.................be factors of numbers 28. The value of \[\frac{1}{a}+\frac{1}{b}+\frac{1}{c}+.........\]is equal to
  A)
  \[\frac{13}{7}\]                          done clear
  B)
  \[\frac{14}{7}\] done clear
  C)
  \[a\frac{27}{13}\]                                  done clear
  D)
   None of these done clear
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• question_answer13)
  \[\frac{182}{195}\]when reduced to the lowest term is
  A)
  \[\frac{13}{15}\]                        done clear
  B)
   \[\frac{14}{15}\] done clear
  C)
  \[\frac{13}{14}\]                                    done clear
  D)
  \[\frac{12}{13}\] done clear
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• question_answer14)
  Which of the following pair is co-prime?
  A)
   81, 135                        done clear
  B)
   87, 116 done clear
  C)
   43, 73             done clear
  D)
   26, 65 done clear
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• question_answer15)
  Find the number of factors of 1024
  A)
   11                                done clear
  B)
   12 done clear
  C)
   13                                done clear
  D)
   14 done clear
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• question_answer16)
  If the 8-digit number 136y5785 is divisible by 15, then find the least possible value of
  A)
   1                                 done clear
  B)
   2 done clear
  C)
   0                                 done clear
  D)
   None of these done clear
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• question_answer17)
  Find the smallest number which when divided by 25, 40 and 60 leaves remainder 7 in each case?
  A)
   607                              done clear
  B)
   608           done clear
  C)
   609                              done clear
  D)
   610 done clear
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• question_answer18)
  x, y, z, w are four odd natural numbers. Let\[u=\]\[{{x}^{2}}+{{y}^{2}}+{{z}^{2}}+{{w}^{2}}\]. Consider following statements

  I. U is always divisible by 4

  II. U is never divisible by 8

  Which of the above statements) is /are true?
  A)
   Only I                          done clear
  B)
   Only II done clear
  C)
   Both I and II                 done clear
  D)
   neither I nor II done clear
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• question_answer19)
  \[\frac{2211}{5025}\], which reduced to its simplest form. By dividing the numerator and denominator
  A)
  \[\frac{11}{25}\]                                    done clear
  B)
  \[\frac{23}{27}\] done clear
  C)
  \[\frac{47}{49}\]                                    done clear
  D)
  \[\frac{37}{43}\] done clear
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• question_answer20)
  A boy saves Rs. 4.65 daily. Find the least number of days in which he will be to save an exact number (whole number) of rupees.
  A)
   24                                done clear
  B)
   20            done clear
  C)
   30                                done clear
  D)
   40 done clear
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• question_answer21)
  H.C.F of two numbers is 16, then their LCM is
  A)
   162                              done clear
  B)
   167           done clear
  C)
   192                              done clear
  D)
   197 done clear
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• question_answer22)
  It is given that 65610 is divisible by 27. Which two numbers nearest to 65610 are each divisible by 27?
  A)
   65583 and 65637       done clear
  B)
   78424 and 74286 done clear
  C)
   74053 and 732404     done clear
  D)
   72854 and 65342 done clear
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• question_answer23)
  What is the HCF of \[4\times 27\times 3125,\text{ }8\times 9\times 25\times 7\]and\[16\times 81\times 5\times 11\times 49\]
  A)
  \[120\]                           done clear
  B)
  \[180\] done clear
  C)
  \[140\]                           done clear
  D)
  \[170\] done clear
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• question_answer24)
  Three City buses leave the bus stop at 9.00 A.M. Bus A returns in every 30 minutes, Bus B returns in every 20 minutes and bus C returns in every 45 minutes. At what time all the buses will all return at the same time to the bus stop?
  A)
   1 : 00 PM                     done clear
  B)
   12 : 00 Noon done clear
  C)
   7 : 00 PM                     done clear
  D)
   11 : 30 PM done clear
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• question_answer25)
  If the 4-digit number \[x27y\] is exactly divisible by 9, then the least value of \[(x+y)\]is
  A)
   1                                 done clear
  B)
   3               done clear
  C)
   4                                 done clear
  D)
   9 done clear
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• question_answer26)
  What is the HCF of two consecutive numbers?
  A)
   3                                 done clear
  B)
   1             done clear
  C)
   4                                 done clear
  D)
   2 done clear
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• question_answer27)
  Find the least number which when divided by 5, 7and 8 leaves 3 as the remainder in each case.
  A)
   283                              done clear
  B)
   78            done clear
  C)
   578                              done clear
  D)
   57 done clear
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• question_answer28)
  What is the least integer by which 4500 should be multiplied so that it becomes a perfect cube?
  A)
   6                                 done clear
  B)
   36           done clear
  C)
   2                                 done clear
  D)
   3            done clear
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• question_answer29)
  M and N are two co-primes. Which of the following is / are true?
  A)
  \[LCM(M,\,\,N)=M\times N\] done clear
  B)
  \[HCF(M,\,\,N)=1\] done clear
  C)
   Both  (A) and (B) done clear
  D)
   Neither  (A) nor (B) done clear
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• question_answer30)
  Which of the following series is in descending order?
  A)
  \[\frac{1}{3},\frac{2}{3},\frac{3}{5},\frac{1}{3}\]                      done clear
  B)
   \[\frac{2}{3},\frac{3}{5},\frac{3}{8},\frac{1}{3}\] done clear
  C)
   \[\frac{1}{3},\frac{3}{8},\frac{3}{5},\frac{2}{3}\]                     done clear
  D)
  \[\frac{2}{3},\frac{1}{3},\frac{3}{8},\frac{3}{5}\] done clear
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