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It takes 12hours to fill a swimming pool using two pipes. If the pipe of larger diameter is used for 4hours and pipe of smaller diameter is used for 9hours, only half of the pool is filled. How long would each pipe take to fill the swimming pool? |
| Answer» It takes 12hours to fill a swimming pool using two pipes. If the pipe of larger diameter is used for 4hours and pipe of smaller diameter is used for 9hours, only half of the pool is filled. How long would each pipe take to fill the swimming pool? | |