14 people can complete (5/12) parts of a work in 18 days, working 7 hours daily. How many hours of work will 21 people complete the rest of the work in 15 days?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e.
Given that
14 people can complete (5/12) parts of a work in 18 days, working 7 hours daily
Let 21 people complete the remaining part (7/12) of the work in 15 days with H hours daily
According to the question
⇒ (14 × 18 × 7) × (12/5) = (21 × 15 × H) × (12/7)
⇒ H = 196/25
⇒ H =