Suppose you are a recreation director at a summer camp. The water in the camp swimming pool was drained out for the winter and it is now time to refill the pool. One pipe can fill the empty pool in 12 hours and another can fill the empty pool in 18 hours. Suppose both pipes are opened at 8:00 A.M. and you have scheduled a swimming activity for 1:00 P.M. that day. Will the pool be filled by then? Yes; after the pipes are opened, the swimming is scheduled to take place in 7.2 hr (7 hr 12 min). It takes 5 hours to fill the pool. Yes; after the pipes are opened, the swimming is scheduled to take place in 5 hours. It takes 7.2 hr (7 hr 12 min) to fill the pool. No; after the pipes are opened, the swimming is scheduled to take place in 7.2 hr (7 hr 12 min) . It takes 7.2 hr (7 hr 12 min) to fill the pool. Yes; after the pipes are opened, the swimming is scheduled to take place in 7.2 hr (7 hr 12 min). It takes 7.2 hr (7 hr 12 min) hours to fill the pool. No; after the pipes are opened, the swimming is scheduled to take place in 5 hours. It takes 7.2 hr (7 hr 12 min) to fill the pool.

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