In a room, there are n persons whose average height is 160 c... — Quantitative Ability 2022

Question 247 Quantitative Ability 2022 Medium MCQ +4.00 marks · -1.00 negative

In a room, there are n persons whose average height is 160 cm. If m more persons, whose average height is 172 cm, enter the room, then the average height of all persons in the room becomes 164 cm. Then m : n is

A. 1 : 3 B. 2 : 1 C. 1 : 2 D. 3 : 1

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