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A can complete 1/3 of a work in 5 days and B, 2/5 of the work in 10 days. In how many days both A and B together can complete the work ?
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- 10 days
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9 3 days 8 -
8 4 days 5 -
7 1 days 2
Correct Option: B
Using basics of Rule 2,
Time taken by A alone in doing the work = 15 days
Time taken by B alone in doing the work
| = | = 25 days | 2 |
∴ (A + B)’s 1 day’s work
| = | + | = | = | |||||
| 15 | 25 | 75 | 75 |
∴ Hence, the work will be completed in
| = 9 | days. | |||
| 8 | 8 |
