-
A can do 1/3 rd of a work in 5 days and B can do 2/5 th of this work in 10 days. Both A and B, together can do the work in
-
-
7 3 days 8 -
8 4 days 5 -
9 3 days 8 - 10 days
-
Correct Option: C
∵ A does 1/3 rd part of work in 5 days.
∴ A will do 1 work in 5 × 3 = 15 days.
∵ B does 2/5 th of work in 10 days
| ∴ B will do 1 work in | = 25 days. | 2 |
∴ (A + B)’s 1 day’s work
| = | + | |||
| 15 | 25 |
| = | = | |||
| 75 | 75 |
| ∴ Required time = | = 9 | |||
| 8 | 8 |
