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

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

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Problems on H.C.F and L.C.M
Find the smallest number of two digits which on being divided by 2, 3, 4 and 5 leaves 0, 1, 2 and 3 as remainder respectively.

58
65
61
55

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Problems on H.C.F and L.C.M
What is the greatest number that will divide 99, 147 and 219 leaving the same reminder in each case?

25
23
22
24

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