Eight labourers working 10 hours a day completed a work in 18 days. If only 5 labourers are working, then in how many hours a day should they work to finish the work in 24 days?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 12 hours.
M1 × D1 × H1 = M2 × D2 × H2
⇒ 8 × 18 × 10 = 5 × 24 × H2
⇒ H2 = 12 hours