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The dimensions of a swimming pool are 66...

The dimensions of a swimming pool are 66m × 35m × 3m . How many hours will it take to fill the pool by a pipe of diameter 35 cm with water flowing at speed 8m/s ?
एक तरणताल के आयाम 66मी x 35 मी x 3मी हैं | 35 सेमी व्यास वाले पाइप से इस ताल को भरने में कितना समय लगेगा यदि जल प्रवाह की दर 8 मी/सेकंड है |

A

2.75

B

3.5

C

2.5

D

3.2

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