A can complete 40% of a work in 8 days, while B takes four more days than that…
2025
A can complete 40% of a work in 8 days, while B takes four more days than that of A to complete the same work. Find the time taken by A and B together to complete the same work (in days)?
- A.
7 10/11
- B.
8 10/11
- C.
9 10/11
- D.
10
- E.
10 10/11
Attempted by 12 students.
Show answer & explanation
Correct answer: E
A completes 40% work in 8 days, so A alone takes 20 days. B takes 24 days. Together their rate is 1/20 + 1/24 = 11/120, so time = 120/11 = 10 10/11 days.