Explanation; by finding the LCM of time taken by both Sonia and Ravi (28 & 21) we can find their least time of meeting again.
Written on Jan. 8, 2020, 8:32 a.m.
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Answer: (b)84.
Explanation; by finding the LCM of time taken by both Sonia and Ravi (28 & 21) we can find their least time of meeting again.
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