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

Problems on H.C.F and L.C.M
The greatest number of four digits which is divisible by 15, 24, 40 and 75 is :

9400
9600
9000
9800

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Problems on H.C.F and L.C.M
Three numbers are in the ratio 3:4:5 and their L.C.M is 2400. Their H.C.F is:

200
80
40
120

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Problems on H.C.F and L.C.M
Which of the following has most number of divisors?

99
101
182
176

ANSWER DOWNLOAD EXAMIANS APP

Problems on H.C.F and L.C.M
What is the greatest number which divides 29, 32, 38 and leaves same remainder in each case?

5
2
4
3

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

10
4
16
15

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

L.C.M. of 2, 4, 6, 8, 10, 12 is 120. So, the bells will toll together after every 120 seconds(2 minutes). In 30 minutes, they will toll together 30 + 1 = 16 times. 2

Problems on H.C.F and L.C.M
A, B and C start at the same time in the direction to run around a circular stadium. A completes a round in 252 seconds and C in 198 seconds, all starting at the same point. after what time will they

42 minutes 36 econds
45 minutes
26 minutes 18 econds
46 minutes 12 econds

ANSWER DOWNLOAD EXAMIANS APP
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