Q5. A takes twice as much time as B and C together take to finish a work. A and B working together finish the work in 4 days. C alone can finish the same work in 4 days. In how many days B alone can finish the work?
Copyright © 2024 EHUB.TIPS team's - All rights reserved.
Answers & Comments
A takes twice as much time as B or thrice as much as C to finish a piece of work. Working together, they can finish the work in 2 days.
Formula used:
Work done = time × efficiency
Calculation:
A,B and C takes x, x/2, and x/3 days respectively to finish the work.
⇒ (1/x + 2/x + 3/x) =
⇒ 6/x = 1/2
⇒ x = 6 × 2
⇒ x = 12.
∴ Time taken by B = = 6 days.