A bus travels 1st 150 km with 25 kmph

MATHEMATICS · Single correct · CBSE · Mathematics · Proportional Reasoning-2 · Proportional Reasoning-2

Problem

A bus travels 1st 150 km with 25 kmph, next 200 km with 50 kmph. What must its speed in last 150 km such that the net average speed for 500 km is 20 kmph (1) 10 kmph (2) 15 kmph (3) 20 kmph (4) 25 kmph

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