Quantitative Apitude-H.C.F & L.C.M. of Numbers
Quantitative Apitude-H.C.F & L.C.M. of Numbers
41. 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 ?
- 4
- 10
- 15
- 16
42. 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:
- 4
- 5
- 6
- 8
43. The greatest number of four digits which is divisible by 15, 25, 40 and 75 is:
- 9000
- 9400
- 9600
- 9800
44. The product of two numbers is 4107. If the H.C.F. of these numbers is 37, then the greater number is:
- 101
- 107
- 111
- 185
45. Three number are in the ratio of 3 : 4 : 5 and their L.C.M. is 2400. Their H.C.F. is
- 40
- 80
- 120
- 200
47. The product of two numbers is 2028 and their H.C.F. is 13. The number of such pairs is:
- 1
- 2
- 3
- 4
48. The least multiple of 7, which leaves a remainder of 4, when divided by 6, 9, 15 and 18 is:
- 74
- 94
- 184
- 364
50. The least number which should be added to 2497 so that the sum is exactly divisible by 5, 6, 4 and 3 is:
- 3
- 13
- 23
- 33