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A sum of money is sufficient to pay A’ s wages for 21 days and B’s wages for 28 days. The same money is sufficient to pay the wages of both for :
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12 1 days 4 - 14 days
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24 1 days 2 - 12 days
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Correct Option: D
| A's 1 day's work = | 21 |
| B's 1 day's work = | 28 |
Total work done by both
| = | + | = | = | |||||
| 21 | 28 | 84 | 12 |
∴ Amount is sufficient to pay 12 days wages of both.
Aliter : Using Rule 2,
Here, x = 21, y = 28
Required days
| = | = | |||
| x + y | 21 + 28 |
| = | = 12 days | 49 |
