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Davesexcel · Answer 1 · 2018-07-10T18:46:38+0000

So we need to represent the problem using an equation

900 = the original pile of bricks (x) + 25% more - 40% (original + 25% extra)

900 = x + .25x - .4(x + x*.25)
900 = x + .25x - .4x - .1x
900 = .75x
x = 1200

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