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1. A large field of 700 hectares is divided into two parts. The difference of the areas of the two parts is one-fifth of the average of the two areas. What is the area of the smaller part in hectares?
400 | 365 | 385 | 315 |
2. The diagonal of a rectangle is $ \sqrt{41} $ cm and its area is 20 sq. cm. The perimeter of the rectangle must be:
9 cm | 18 cm | 20 cm | 41 cm |
3. A rectangular plot measuring 90 metres by 50 metres needs to be enclosed by wire fencing such that poles of the fence will be kept 5 metres apart. How many poles will be needed?
30 | 44 | 56 | 60 |
4. 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:
Rs. 456 | Rs. 458 | Rs. 558 | Rs. 568 |
5. If the length of a rectangle is halved and its breadth is tripled, what is the percentage change in its area?
25 % Increase | 25 % Decrease | 50 % Decrease | 50 % Increase |
6. A rectangular field has 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?
95 | 92 | 88 | 82 |
7. An error 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is:
2% | 2.02% | 4% | 4.04% |
8. The breadth of a rectangular field is 60% of its length. If the perimeter of the field is 800 m, find out the area of the field.
37500 m2 | 30500 m2 | 32500 m2 | 40000 m2 |
9. 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?
34 | 40 | 68 | 88 |
10. If each side of a square is increased by 25%, find the percentage change in its area?
65.25 | 56.25 | 65 | 56 |
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