Homework Help: Math: percentage problem

Posted by Anonymous on Saturday, January 10, 2009 at 5:17pm.

A set of building blocks includes squares of various shapes and colors. If 20% of the blockers were square and 50% of the squares block are red, then ___ of the blocks are red squares.

My answer is 40% (20% x 50% / 100% = 40%). Is this correct?

Math: percentage problem - bobpursley, Saturday, January 10, 2009 at 5:38pm
No. Consider you have 100 blocks.
20 are square.
10 of the square are red.
That is ten percent of the blocks are red squares.

check my thinking.
Math: percentage problem - Anonymous, Saturday, January 10, 2009 at 5:59pm
wow... thank you... i feel dumb now...

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