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Question 1 of 25
1. Question
Find the greatest number that will divide 43, 91 and 183 so as to leave the same remainder in each case.

Question 2 of 25
2. Question
The H.C.F. of two numbers is 23 and the other two factors of their L.C.M. are 13 and 14. The larger of the two numbers is:

Question 3 of 25
3. Question
Six bells commence tolling together and toll at intervals of 2, 4, 6, 8 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together ?

Question 4 of 25
4. Question
Let N be the greatest number that will divide 1305, 4665 and 6905, leaving the same remainder in each case. Then sum of the digits in N is:

Question 5 of 25
5. Question
The greatest number of four digits which is divisible by 15, 25, 40 and 75 is:

Question 6 of 25
6. Question
The product of two numbers is 4107. If the H.C.F. of these numbers is 37, then the greater number is:

Question 7 of 25
7. Question
Three number are in the ratio of 3 : 4 : 5 and their L.C.M. is 2400. Their H.C.F. is:

Question 8 of 25
8. Question
The G.C.D. of 1.08, 0.36 and 0.9 is:

Question 9 of 25
9. Question
The product of two numbers is 2028 and their H.C.F. is 13. The number of such pairs is:

Question 10 of 25
10. Question
The least multiple of 7, which leaves a remainder of 4, when divided by 6, 9, 15 and 18 is:

Question 11 of 25
11. Question
Find the lowest common multiple of 24, 36 and 40

Question 12 of 25
12. Question
The least number which should be added to 2497 so that the sum is exactly divisible by 5, 6, 4 and 3 is:

Question 13 of 25
13. Question
The least number which when divided by 5, 6 , 7 and 8 leaves a remainder 3, but when divided by 9 leaves no remainder, is:

Question 14 of 25
14. Question
The H.C.F. of two numbers is 11 and their L.C.M. is 7700. If one of the numbers is 275, then the other is:

Question 15 of 25
15. Question
What will be the least number which when doubled will be exactly divisible by 12, 18, 21 and 30 ?

Question 16 of 25
16. Question
The ratio of two numbers is 3 : 4 and their H.C.F. is 4. Their L.C.M. is:

Question 17 of 25
17. Question
The smallest number which when diminished by 7, is divisible 12, 16, 18, 21 and 28 is:

Question 18 of 25
18. Question
252 can be expressed as a product of primes as

Question 19 of 25
19. Question
The greatest possible length which can be used to measure exactly the lengths 7 m, 3 m 85 cm, 12 m 95 cm is

Question 20 of 25
20. Question
Three numbers which are coprime to each other are such that the product of the first two is 551 and that of the last two is 1073. The sum of the three numbers is:

Question 21 of 25
21. Question
Find the highest common factor of 36 and 84.

Question 22 of 25
22. Question
The least number, which when divided by 12, 15, 20 and 54 leaves in each case a remainder of 8 is

Question 23 of 25
23. Question
The greatest number which on dividing 1657 and 2037 leaves remainders 6 and 5 respectively, is:

Question 24 of 25
24. Question
Which of the following has the most number of divisors?

Question 25 of 25
25. Question
The L.C.M. of two numbers is 48. The numbers are in the ratio 2 : 3. Then sum of the
If the sum of two numbers is 55 and the H.C.F. and L.C.M. of these numbers are 5 and 120 respectively, then the sum of the reciprocals of the numbers is equal to: is:
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