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Mathematics, 01.07.2019 23:30 larissa1013

Aswimming pool is open for 7 1/2 hours a day. each lifeguard will stay on duty for 1 1/2 hours. how many lifeguards will be needed for one day?

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Aswimming pool is open for 7 1/2 hours a day. each lifeguard will stay on duty for 1 1/2 hours. how...
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