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Mathematics, 03.07.2019 02:00 naomicervero
Aswimming pool is opened for 7 1/2 hours during a day. the pool keeps one lifeguard on duty at a time, and each lifeguard shift is one and a half hours long. how many shifts are there per day?
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Aswimming pool is opened for 7 1/2 hours during a day. the pool keeps one lifeguard on duty at a tim...
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