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bricks in the wall

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by sanju09 » Fri May 14, 2010 2:36 am
Robert builds a wall made from bricks. Each layer has exactly three more bricks than the layer immediately above it. If the wall has five layers, how many bricks will the top layer have if the total number of bricks in the wall is 80?
(A) 10
(B) 13
(C) 16
(D) 19
(E) 22
The mind is everything. What you think you become. -Lord Buddha



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by jusgaurav » Fri May 14, 2010 3:09 am
The brick layers have been shown through the answer options :) Just treat Option A as the top layer. the next option is the 2nd layer, 3rd option is the 3rd layer and so on & so forth!
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by kstv » Fri May 14, 2010 8:37 am
jugaurav wrote:The brick layers have been shown through the answer options :) Just treat Option A as the top layer. the next option is the 2nd layer, 3rd option is the 3rd layer and so on & so forth!
great work
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by gmatmachoman » Fri May 14, 2010 12:04 pm
kstv wrote:
jugaurav wrote:The brick layers have been shown through the answer options :) Just treat Option A as the top layer. the next option is the 2nd layer, 3rd option is the 3rd layer and so on & so forth!
great work
I am loving it!!
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