Prasad alone can complete a work in 144 days. How many people were required, with the same efficiency as Prasad, to complete the same work in 16 days?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 9.
Prasad alone can complete a work = 144 days
We know that
M1 × D1 = M2 × D2 (Where M = number of man, and D = Total days)
1 × 144 = M2 × 16
M2 = 144/16 = 9
So, to complete the same work in 16 days, 9 people with the same efficiency as Prasad will be required.