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| Q.4 | The radius of a roller is 56 cm and its length is 240 cm. It takes 875 complete revolutions to move once over to the level of a playground. Find the area of the playground. | |
| Ans | 1. 8400 m2 | |
| 2. 7392 m2 | ||
| 3. 7650 m2 | ||
| 4. 6389 m2 |
Correct Ans: 2
