Question

Red bricks and grey bricks were used to build a decorative wall. The number of red bricks divided by number of grey bricks was 5/2. There were 224 bricks used in all. How many red bricks were used?

Answer 1

Red bricks : Grey bricks
        5        :            2

Total parts = 5 + 2 = 7

7 parts = 224
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Find 1 part:
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1 part = 234 ÷ 7
1 part = 32

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Find 5 parts:
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5 parts = 32 x 5 
5 parts = 160

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Answer: 160 Red bricks
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