Three friends P, Q and R go for morning walks around a groun... — MSQ 2021

Question 520 MSQ 2021 Medium MSQ +4.00 marks · -0.19 negative

Three friends P, Q and R go for morning walks around a ground. They start out together from the gate in the same direction, but walk at different speeds. R walks half as fast as P. Q walks 1.5 times faster than R. P takes 1 minute to take one round around the ground. If they all stop when R has finished 4 rounds, which of the options must be true? [Figure: see page 13 of source PDF]

Select all that apply.

A. Between the start and the end (not counting the start and the end instances), P and R meet each other thrice. B. Between start and the end (not counting the start and the end instances), P meets Q only once. C. Q will overtake R once near the Tree. D. At the end, P, Q and R will reach the gate at the same time.

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