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

42 minutes and 36 seconds
46 minutes and 12 seconds
45 minutes
26 minutes and 18 seconds

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Problems on H.C.F and L.C.M
In a school, the number of students in Sections A , B and C of 10th class are 70,98 and 126 respectively. Due to overload of student in each class , the administration wants to increase the number roo

14
21
17
28

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Problems on H.C.F and L.C.M
Three numbers which are co-prime to each other are such that the product of the first two is 551 and that of the last two is 1073. The sum of the three numbers is:

80
90
85
95

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Problems on H.C.F and L.C.M
The least positive integer which is a perfect square and also divisible by each of 6,12, 18 and 24?

152
148
144
141

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