A can do as much work in 4 days as B can do in 5 days, and B can do as much work in 6 days as C in 7 days. In what time will C do a piece of work which A can do in a week?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 245/24 days
Here, 4A = 5B and 6B = 7C
A/5 = B/4
B/7 = C/6
A : B : C = 35 : 28 : 24
A can do work in week i.e. 7 days
C can do that work = (35 × 7)/24 = 245/24 days