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A playground is in the shape of a rectangle. A sum of $ 1,000 was spent to make the ground usable at the rate of 25 paise per sq. m. The breadth of the ground is 50 m. If the length of the ground is increased by 20 m, what will be the expenditure (in rupees) at the same rate per sq. m. ?
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- 1,250
- 1,000
- 1,500
- 2,250
- 1,250
Correct Option: A
Using Rule 9,
| = | = 4000 sq. metre | |||
| 1 | ||||
| 4 | ||||
| ∴ Length = | = 80 metre | |
| 50 |
New length of field = 100 metre
New area = 100 × 50 = 5000 sq. metre
| ∴ Required expenditure = $ |  | 5000 × |  | = $1250 | |
| 4 |
