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geometry areas

Expert replies
by earth@work » Fri Sep 19, 2008 10:56 am
The paint in a certain container is sufficient to paint an area equal to 9.375 m2. How many bricks of dimensions 22.5 cm × 10 cm × 7.5 cm can be painted out of this container?
i m not getting the correct answer = 100 bricks...cud u help, my brain not working on this simple problem.
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Source: — Problem Solving |

by stop@800 » Fri Sep 19, 2008 11:31 am
2(lb + bh + hl)

2( 225 + 75 + 22.5*7.5)
= 937.5

Paint = 9.375 m2 = 93750 cm2

total bricks 100
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thanks stop@800

by earth@work » Fri Sep 19, 2008 11:43 am
thanks...my brain was on a handbrake... thanks for pulling it out from there :-)
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