Ratio And Proportion Ques 17

Question-

If 7 boys and 2 men working together can do three times as much work per hour as a boy and a man together, what will be the respective ratio of work done by a boy and a man for the given time?

(1) $3: 1$

(2) $1: 2$

(3) $1: 3$

(4) $2: 3$

(5) $1: 4$

(IBPS Bank PO/MT CWE-V Main Exam. 31.10.2015)

Show Answer

Correct Answer: (5)

Solution: (5)

7 boys +2 men $= 3$ boys +3 men

$\Rightarrow 4$ boys $= 1$ man

$\therefore$ Required ratio $=1: 4$