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Area - General Questions Multiple Questions and Answers.
| 11. | The difference between the length and breadth of a rectangle is 23 m. If its perimeter is 206 m, then its area is: | ||
| A. | 1520 m2 | ||
| B. | 2420 m2 | ||
| C. | 2480 m2 | ||
| D. | 2520 m2 | ||
| 12. | The length of a rectangle is halved, while its breadth is tripled. What is the percentage change in area? | ||
| A. | 25% increase | ||
| B. | 50% increase | ||
| C. | 50% decrease | ||
| D. | 75% decrease | ||
| 14. | A rectangular field is to be fenced on three sides leaving a side of 20 feet uncovered. If the area of the field is 680 sq. feet, how many feet of fencing will be required? | ||
| A. | 34 | ||
| B. | 40 | ||
| C. | 68 | ||
| D. | 88 | ||
| 15. | A tank is 25 m long, 12 m wide and 6 m deep. The cost of plastering its walls and bottom at 75 paise per sq. m, is: | ||
| A. | Rs. 456 | ||
| B. | Rs. 458 | ||
| C. | Rs. 558 | ||
| D. | Rs. 568 | ||
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