20 women can finish a piece of work in 16 days and 16 men can finish it in 15 days. What is the ratio of the working efficiency of a man and a woman?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 4 : 3
Calculations:
20 women can finish a piece of work in 16 days = 16 men can finish it in 15 days
Let the women be W and men be M.
According to the question;
⇒ 20W × 16 = 16M × 15
⇒ M/W = 4/3
Hence, the required ratio = 4 : 3