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

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:

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

ANSWER DOWNLOAD EXAMIANS APP

Problems on H.C.F and L.C.M
1095/1168 when expressed in simplest form is:

17/26
15/16
25/26
13/16

ANSWER DOWNLOAD EXAMIANS APP

Problems on H.C.F and L.C.M
The H.C.F. of 0.54, 1.8 and 7.2 is:

0.18
1.8
18
0.018

ANSWER DOWNLOAD EXAMIANS APP

Problems on H.C.F and L.C.M
Six belts 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 ?

15
16
4
10

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Problems on H.C.F and L.C.M
Find the H.C.F of 54/9, 3 9/17 and 36/51?

6/153
17/6
6
17

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Problems on H.C.F and L.C.M
The least number which should be added to 2497 so that sum is divisible by 5, 6, 4, 3?

27
25
23
21

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

LCM of 5,6,4,3 is 60.On dividing 2497 by 60 we get 37 as remainder.Therefore number to be added is 60 - 37 =23.

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