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 small cal. problem
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Posted on 04-25-11 12:08 PM     Reply [Subscribe]
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A rectangular wimming pool is 75 ft long, 30 ft wide , 12 feet deep at the deep end, and 4 feet deep at the shallow end. If the pool filled by pumping water into it at the rate of 50 cubic ft per min , how fast water level rising when it is 4 ft deep at the end?

Posted on 04-25-11 1:17 PM     [Snapshot: 49]     Reply [Subscribe]
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( 70X30x4)/50 cubic fit per min = 140 mins.

Posted on 04-25-11 1:46 PM     [Snapshot: 82]     Reply [Subscribe]
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Posted on 04-25-11 2:13 PM     [Snapshot: 98]     Reply [Subscribe]
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I have no idea about the wimming pool, but if it was the swimming pool,

when the water reaches the 4 ft deep area, it implies the 12 ft deep area is already filled. Hence, whole length and breadth is considered.

Flow rate: 50 cu.ft/min
Area: 75 * 30 sq. ft

the rate at which the water will be rising is

50 / (75*30) ft/min

=1/45 = 0.02222 ft/min

= 1.333 ft/hr.

Once again, if it is the wimming pool, no idea, who knows the wimming pool may absorb water,
Last edited: 25-Apr-11 02:14 PM

Posted on 04-25-11 2:36 PM     [Snapshot: 128]     Reply [Subscribe]
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come on guys, actually it is swimming pool:) sorry for that,any way thanks in advance!
Last edited: 25-Apr-11 05:04 PM


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