Question
The cost of cementing a floor 12m by 12m is N9.60. What would be the cost of cementing a floor 24m by 24m at the same rate?
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Cost of 12m by 12m = N9.60
Area of 12m by 12m = 12 x 12 = 144m2
Area of 24m by 24m = 24 x 24 = 576m2
Cost of 24m by 24m = (N9.60 x 576) / 144 = N38.40
Area of 12m by 12m = 12 x 12 = 144m2
Area of 24m by 24m = 24 x 24 = 576m2
Cost of 24m by 24m = (N9.60 x 576) / 144 = N38.40