Question

If $5$ men and $2$ boys working together can do four times as much work per hour as a man and a boy together, compare the work of a man with that of a boy?

• A. $1:2$
• B. $2:1$
• C. $1:3$
• D. $1:4$

Answer 1

The correct option is B $2:1$

Let 1 man 1 day work = x

1 boy 1-day work = y

then $5x+2y=4(x+y)$

$⟹x=2y$

$\frac{x}{y}=\frac{2}{1}$

$⟹x:y=2:1$