45 people can repair a road in 10 days, working 6 hours a day. In how many days can 30 people, working 6 hours a day, complete the same work?
Explanation:
We know when work to be done is same, M1H1D1 = M2H2D2
⇒ 45 × 6 × 10 = 30 × 6 × D2
⇒ 450 = 30 × D2
⇒ D2 = 450/30 = 15 days
Hence, option (a).
» Your doubt will be displayed only after approval.