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UPSC CDS Math HCF and LCM of Numbers and Polynomials Questions

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Question : 2

Total: 31

X, Y and Z start at same point and same in the same direction to run around a circular stadium. X completes a round in 252 seconds, Y in 308 seconds and Z in 198 seconds. After what time will they meet again at the starting point ?

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

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