A and B can complete a work together in 48 days. A is 4 times as work efficient as B In how many days can B alone complete the work?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 240 days
Given that
A is 4 times as work-efficient as B.
A and B can complete a work together in 48 days.
B can alone complete the work in d days.
According to the question
(A +B ) × 48 = B × d
5 × 48 = 1 × d
d = 240 days