Homework Help: percentage

Posted by Da S on Saturday, February 11, 2012 at 9:05pm.

Choon yong was asked to paint a wall of area 84 meter square.In one hour,he had painted 21meter square.
a)what percentage of the wall was left unpainted?

percentage - DrBob222, Saturday, February 11, 2012 at 9:53pm
I've done two for you above. You should have the idea by now.

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