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April 16, 2014

Homework Help: maths

Posted by lissa on Friday, October 28, 2011 at 7:19am.

A swimming pool has two identical sides in the shape of a trapezium.
All other sides are rectangular.
The length of the pool is 12m.
The width of the pool is 4m.
The depth of the pool is 2.1m at the deep end and 1.1m at the shallow end.

Rafa fills the pool up with water from a hosepipe.
The surface of the water is to be 10cm from the top of the pool.

Rafa turns on the hosepipe at09 00 on Monday and water fills at a rate of 200ml per second.

When the pool is full, Rafa turns of the tap. At what time wil this be?
Show your working out.

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