5 men and 2 boys working together can do four times as much work as a man and a boy. Working capacities of a… · ABC26GN3533

Subject: General Aptitude · Chapter: Time and Work

5 men and 2 boys working together can do four times as much work as a man and a boy. Working capacities of a man and a boy are in the ratio :

(a)1 : 2

(b)2 : 1

(c)1 : 3

(d)3 : 1

Answer

Answer (as printed): B

Explanation

Let 1 man's 1 day's work = x and 1 boy's 1 day's work = y. Then, $5x + 2y = 4(x + y) \Rightarrow x = 2y \Rightarrow \frac{x}{y} = \frac{2}{1}$.

Explanation as extracted from the printed page; notation may be imperfect.

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