-
question_answer1)
Which one among the following statements is not true?
A)
The LCM of two or more given numbers is the lowest of their common multiple. done
clear
B)
The HCF of two or more given numbers is the highest of their common factors. done
clear
C)
The numbers having more than two factors are called coprime numbers. done
clear
D)
All the above done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer2)
The ratio between two numbers is 8:5 and their LCM is 360. The larger number is___.
A)
24 done
clear
B)
72 done
clear
C)
48 done
clear
D)
36 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer3)
Which one among the following is most appropriate for coprimes?
A)
Numbers having more than two factors are called coprimes. done
clear
B)
Two numbers are called coprimes, if there is no common factor other than 1, between these two numbers. done
clear
C)
Two numbers are called coprimes, if there is no common factor other than 2, between these two numbers. done
clear
D)
Pair of prime numbers are called coprimes. done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer4)
The least number which when divided by 4, 5 and 6 leaves remainder 3 in each case, is_____.
A)
63 done
clear
B)
67 done
clear
C)
71 done
clear
D)
252 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer5)
Find the LCM of 9, 14, 15, 18, 12.
A)
126 done
clear
B)
252 done
clear
C)
630 done
clear
D)
1260 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer6)
The LCM of three prime numbers are 4991. Find the between these prime numbers,
A)
47 done
clear
B)
19 done
clear
C)
29 done
clear
D)
31 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer7)
The LCM of two numbers is 27. The numbers cannot be____.
A)
3, 27 done
clear
B)
1. 27 done
clear
C)
3, 9 done
clear
D)
9, 27 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer8)
The HCF of two numbers is 48. The product of the numbers can be___.
A)
3200 done
clear
B)
2400 done
clear
C)
48 done
clear
D)
4608 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer9)
The product of two numbers is 324. Their HCF can be______.
A)
54 done
clear
B)
9 done
clear
C)
4 done
clear
D)
27 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer10)
The product of two numbers is 840. Their LCM can be
A)
210 done
clear
B)
70 done
clear
C)
420 done
clear
D)
All the above done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer11)
The HCF and LCM of the numbers 780 and 210 are respectively ___
A)
30, 5460 done
clear
B)
60, 2730 done
clear
C)
90, 10920 done
clear
D)
30, 2730 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer12)
A rectangular courtyard with length 10m 50cm and breadth 4m 20cm is to be paved with square stones of the same size. The least number of such stones required are___.
A)
20 done
clear
B)
10 done
clear
C)
8 done
clear
D)
6 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer13)
Least common multiple number of two numbers is 360. Then which one of the following cannot be the highest common factor of the numbers.
A)
36 done
clear
B)
24 done
clear
C)
16 done
clear
D)
15 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer14)
Find the LCM of the numbers 10, 7, 8, 11, 52, 27.
A)
1181820 done
clear
B)
1081080 done
clear
C)
2162160 done
clear
D)
540540 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer15)
The least common multiple of four numbers is 720. If three numbers are 16, 10 and 40 then fourth number can be _______.
A)
75 done
clear
B)
144 done
clear
C)
80 done
clear
D)
54 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer16)
The product of two numbers is 11016 and their HCF is 18. Find their LCM.
A)
1224 done
clear
B)
612 done
clear
C)
112 done
clear
D)
560 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer17)
The HCF of the greatest two digit prime numbers and the greatest four digit numbers is ___
A)
195 done
clear
B)
199 done
clear
C)
1 done
clear
D)
97 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer18)
The sum of two numbers is 324 and their HCF is 9. Find the numbers.
A)
18, 306 done
clear
B)
315, 9 done
clear
C)
27, 297 done
clear
D)
All the above done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer19)
The HCF and LCM of two numbers are 28 and 1176 respectively. If the difference between the numbers is 308, then the numbers can be
A)
1176, 28 done
clear
B)
412, 104 done
clear
C)
392, 84 done
clear
D)
402, 94 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer20)
Swapnesh wants to mail three parcels to three village schools. He finds that the postal charges are Rs 42, Rs 63 and Rs 294. He wants to buy stamps only of one denomination. Find the greatest denomination of stamps he must buy to mail the three parcels.
A)
23 done
clear
B)
21 done
clear
C)
27 done
clear
D)
31 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer21)
The HCF of two numbers is 35 and the other two factors of their LCM are 11 and 17. Find the larger of the two numbers.
A)
595 done
clear
B)
365 done
clear
C)
275 done
clear
D)
385 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer22)
Six bells are tolled together They toil at the of 3, 5, 8, 9, 12 and 15 seconds respectively in 24 hours, how many times do they toll together?
A)
4 done
clear
B)
120 done
clear
C)
12 done
clear
D)
240 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer23)
In a school library there are 1080 books of Mathematics and 792 books of Science. Ms Shilpi, the librarian of the school wants to store these books in shelves such that each shelf should have the same number of books of each subject. What should be the minimum number of each subject in each shelf?
A)
72 done
clear
B)
36 done
clear
C)
108 done
clear
D)
2310 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer24)
The product of two numbers is 9126. If HCF of the numbers is 39, find the larger numbers.
A)
39 done
clear
B)
78 done
clear
C)
156 done
clear
D)
117 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer25)
HCF of two numbers is 42. If the product of the numbers is 15876, then possible number of such pairs is_______
A)
1 done
clear
B)
2 done
clear
C)
3 done
clear
D)
4 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer26)
The least multiple of 7 which leaves a remainder of 5 when divided by 13, 15, 18 and 36, is____.
A)
2345 done
clear
B)
235 done
clear
C)
335 done
clear
D)
2340 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer27)
Three tankers can contain 391 litres, 483 litres and 667 litres of diesel respectively. Find the maximum capacity of a container which can measure the diesel of the three containers exact number of times,
A)
17 litres done
clear
B)
21 litres done
clear
C)
23 litres done
clear
D)
29 litres done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer28)
The least number which when doubled will be exactly divisible by 24, 16, 21 and 28 is ____.
A)
336 done
clear
B)
168 done
clear
C)
672 done
clear
D)
330 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer29)
The smallest 5 digit number exactly divisible by 6, 7, 8, 9and 10 is ____.
A)
10080 done
clear
B)
25200 done
clear
C)
10008 done
clear
D)
10540 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer30)
Find the least possible length which can exactly measure the lengths 12 m, 14 m 85 cm and 10 m 8 cm.
A)
8316 m done
clear
B)
3456 m done
clear
C)
5468 m done
clear
D)
6902 m done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer31)
The HCF of 2.59, 6.29 and 3.7 is _____.
A)
0.74 done
clear
B)
7.4 done
clear
C)
0.37 done
clear
D)
3.7 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer32)
The LCM of 174, 319 and 377 is _____.
A)
24882 done
clear
B)
24412 done
clear
C)
329246 done
clear
D)
29264 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer33)
Which of the following statements is correct?
A)
The HCF of two distinct prime numbers is not 1. done
clear
B)
The HCF of two co prime numbers is not 1. done
clear
C)
The HCF of an even and odd number is not even. done
clear
D)
The HCF of two consecutive odd numbers is not 1. done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer34)
The greatest number which on dividing 6997 and 5222, leaves a remainder of 12 and 15 respectively, is _____.
A)
127 done
clear
B)
129 done
clear
C)
133 done
clear
D)
141 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer35)
The largest number which divides 625,856 and 1626 to leave the same remainder, is _____.
A)
33 done
clear
B)
21 done
clear
C)
77 done
clear
D)
147 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer36)
Six bells commence tolling together and toll at the intervals of 3, 5, 8, 10, 12 and 15 seconds respectively in 2 hours. How many times they will toll together?
A)
30 done
clear
B)
12 done
clear
C)
60 done
clear
D)
1 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer37)
If the ratio of two numbers is 5: 6 and their HCF is 8, then find their LCM.
A)
300 done
clear
B)
120 done
clear
C)
240 done
clear
D)
160 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer38)
If the product of two numbers is 1259712 and their HCF is 27 then find their LCM.
A)
46656 done
clear
B)
48658 done
clear
C)
52560 done
clear
D)
38902 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer39)
Among three co-prime numbers, the product of the first two is 18304 and the product of the last two is 72576, find the sum of these numbers.
A)
588 done
clear
B)
764 done
clear
C)
686 done
clear
D)
838 done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer40)
Find the HCF of\[\frac{2}{3},\frac{10}{9},\frac{4}{15}\].
A)
\[\frac{1}{9}\] done
clear
B)
\[\frac{2}{45}\] done
clear
C)
\[\frac{1}{33}\] done
clear
D)
\[\frac{1}{18}\] done
clear
E)
None of these done
clear
View Solution play_arrow
