In 16 days, A can build railway track between two given stations, whereas B can accomplish the same in 12 days. They completed the task in in four days with the aid of C. Then C alone can do the task in:
A. 9 1/5days
B. 9 2/5days
C. 9 3/5days
D. 10
Answer:C
In 16 days, A can build railway track between two given stations, whereas B can accomplish the same in 12 days. They completed the task in in four days with the aid of C. Then C alone can do the task in:
A. 9 1/5days B. 9 2/5days C. 9 3/5days D. 10
Explanation: 1 day's work for (A + B + C) = 1/4,1/16 of a day's labour for A1/12 of a day's labour for B.As a result, C's 1 day's work equals 1/4 -(1/16+1/12) = (1/4 -7/48) = 5/48.As a result, C alone can complete the task in 48/5 = 9 3/5 days.