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A can do a piece of work in 8 days. A undertook to it for $320. With the help of B, he finishes the work in 6 days. B’s share is:
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- $80
- $240
- $100
- $120
Correct Option: A
As we know that ,
Here, Total amount = $320
| (A + B)’s 1 day’s work = | 1 |
| 6 |
| A’s 1 days’ work = | 1 |
| 8 |
∴ B’s 1 days’ work = (A + B)’s 1 day’s work - A’s 1 days’ work
| B’s 1 days’ work = | - | = | |||
| 6 | 8 | 24 |
| ∴ Money should be divided in the ratio = | : | = | 3 : 1 | ||
| 8 | 24 |
| ∴ B gets = $ |  | x | Total amount |  | Sum of both ratios |
| ∴ B gets = $ | | x | 320 | | = $ 80 | 4 |
