H.C.F & L.C.M. of Numbers Questions and Answers
Practice ModeShowing 10 of 65 questions
Q41
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 ?
Answer: Option D
Q42
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:
Answer: Option A
Q43
The greatest number of four digits which is divisible by 15, 25, 40 and 75 is:
Answer: Option C
Q44
The product of two numbers is 4107. If the H.C.F. of these numbers is 37, then the greater number is:
Answer: Option C
Q45
Three number are in the ratio of 3 : 4 : 5 and their L.C.M. is 2400. Their H.C.F. is
Answer: Option A
Q46
The G.C.D. of 1.08, 0.36 and 0.9 is:
Answer: Option D
Q47
The product of two numbers is 2028 and their H.C.F. is 13. The number of such pairs is:
Answer: Option B
Q48
The least multiple of 7, which leaves a remainder of 4, when divided by 6, 9, 15 and 18 is:
Answer: Option D
Q49
Find the lowest common multiple of 24, 36 and 40.
Answer: Option C
Q50
The least number which should be added to 2497 so that the sum is exactly divisible by 5, 6, 4 and 3 is:
Answer: Option C