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Problems on H.C.F and L.C.M

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:

268
1015
432
689

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Required number = (L.C.M. of 12,16, 18, 21, 28) + 7= 1008 + 7= 1015

Problems on H.C.F and L.C.M
The traffic light at three different road crossing change after every 48 sec, 72 sec. and 108 sec. respectively . If they all change simultaneously at 8 : 20 : 00 hours, then at what time will they ag

7 : 27 : 12 hrs.
5 : 27 : 12 hrs.
8 : 27 : 12 hrs.
6 : 27 : 12 hrs.

ANSWER DOWNLOAD EXAMIANS APP

Problems on H.C.F and L.C.M
Find the least square number which is divisible by 10, 12, 15 and 18?

1600
900
2500
3600

ANSWER DOWNLOAD EXAMIANS APP

Problems on H.C.F and L.C.M
Three numbers are in the ratio 1:2:3 and their H.C.F is 12. The numbers are:

5, 10, 15
10, 20, 30
4, 8, 12
10, 20, 30

ANSWER DOWNLOAD EXAMIANS APP

Problems on H.C.F and L.C.M
Two numbers are in the ratio 3 : 4. If their L.C.M. is 96. what is sum of the numbers?

56
84
76
48

ANSWER DOWNLOAD EXAMIANS APP

Problems on H.C.F and L.C.M
The H.C.F. of two numbers is 11 and their L.C.M. is 693. If one of the numbers is 77,find the other.

99
89
79
109

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Other number = 11 X 693   = 99                              77                            

MORE MCQ ON Problems on H.C.F and L.C.M

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