A can do as much work in 3 days as B can in 2 days and C can do as much work in 5 days as much work as B can in 6 days. What time will C take to complete a work that A can complete in 36 days?
Explanation:
We know the ratio of efficiency is reciprocal to the ratio of time taken to complete a certain work.
Ratio of time taken by A and B = 3 : 2
Ratio of time taken by B and C = 6 : 5
∴ Ratio of time taken by A, B and C = 9 : 6 : 5.
∴ Any work that A can complete in 36 days, C can do it in 5/9 × 36 = 20 day’s time.
Hence, option (d).
» Your doubt will be displayed only after approval.
Help us build a Free and Comprehensive Preparation portal for various competitive exams by providing us your valuable feedback about Apti4All and how it can be improved.