Question
Three boys runs around a circular track and takes 24
min, 40 min and 42 min respectively to complete the one round. When do they all come relatively to the same position as at a certain point of time in their path?Solution
∴  Required time = LCM of (24, 40 and 42) = 840 min Hence, after 840 min they all come relatively to the same position as at a certain point of time in their path.
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