A.2 x 2 x 3 x 3 x 7
B.2 x 2 x 2 x 3 x 7
C.3 x 3 x 3 x 3 x 7
D.2 x 3 x 3 x 3 x 7
Show AnswerAnswer=Option A
Problems on H.C.F and L.C.M
The smallest number which when diminished by 7, is divisible 12, 16, 18, 21 and 28 is:
A.1008
B.1015
C.1022
D.1032
Show AnswerAnswer=Option B
The ratio of two numbers is 3 : 4 and their H.C.F. is 4. Their L.C.M. is:
A.12
B.16
C.24
D.48
Show AnswerAnswer=Option D
What will be the least number which when doubled will be exactly divisible by 12, 18, 21 and 30 ______?
A.196
B.630
C.1260
D.2520
Show AnswerAnswer=Option B
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:
A.279
B.283
C.308
D.318
Show AnswerAnswer=Option C
A, B and C start at the same time in the same direction to run around a circular stadium. A completes a round in 252 seconds, B in 308 seconds and c in 198 seconds, all starting at the same point. After what time will they again at the starting point _______?
A.26 minutes and 18 seconds
B.42 minutes and 36 seconds
C.45 minutes
D.46 minutes and 12 seconds
Show AnswerAnswer=Option D
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:
A.1677
B.1683
C.2523
D.3363
Show AnswerAnswer=Option B
Reduce 128352/238368 to its lowest terms.
A.3/4
B.5/13
C.7/13
D.9/13
Show AnswerAnswer=Option C
The least number which should be added to 2497 so that the sum is exactly divisible by 5, 6, 4 and 3 is:
A.3
B.13
C.23
D.33
Show AnswerAnswer=Option C
Find the lowest common multiple of 24, 36 and 40.
A.120
B.240
C.360
D.480
Show AnswerAnswer=Option C