Quantitative Aptitude Ques 1152

Question: Seema, Meena and Reema begin to walk around a circular stadium and they complete their revolutions in 54 s, 42 s and 63 s, respectively. After approximately how many minutes will they come together at the starting point?

Options:

A) 8 min

B) 10 min

C) 3 min

D) 6 min

Show Answer

Answer:

Correct Answer: D

Solution:

  • LCM of 54, 42 and 63 = 378 s = 6.3 min Hence, after 6 min (approx.) they will come together at the starting point.
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