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A can cultivate 2/5 th of a land in 6 days and B can cultivate 1/3 rd of the same land in 10 days. Working together A and B can cultivate 4/5 th of the land in:
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- 4 days
- 5 days
- 8 days
- 10 days
Correct Option: C
Using basics of Rule 2,
The part of field cultivated by A in 1 day
| = | = | |||
| 5 × 6 | 15 |
The part of field cultivated by B in 1 day
| = | = | |||
| 3 × 10 | 30 |
∴ The part of field cultivated by A and B together
| = | + | = | = | |||||
| 15 | 30 | 30 | 10 |
∴ 4/5 part of field cultivated by A and B together in
| = | × | days | ||
| 5 | 1 |
| = | = 8 days | 5 |
