A rectangular plot is 40m long and 16m broad A road of uniform width of 2m surrounds the plot inside it find the cost of paving the road with bricks at $ 15 per square metre and also find the cost of covering the remaining part og the plot with grass at $ 9 per square metre
Answers
Answered by
16
Answer:
width of the road=2m
outer Rectangle, I = 40m, b = 16m
Inner Rectangle, I = 36m, b = 12m
Area of Outer rectangle = 40x16=
= 640m2
Area of inner Rectangle = 36x12
= 432m2
Area of the road=640-432 =208m2
cost of paving bricks @ $15
=208x15 = $3120. Ans
Area of inner Rectangle 432m2
cost of covering with grass @ $9
= 432x9= $3888. .. Ans
Answered by
13
Answer:
$3120 and $3888
Step-by-step explanation:
width of the road=2m
outer Rectangle, I = 40m, b = 16m
Inner Rectangle, I = 36m, b = 12m
Area of Outer rectangle = 40x16=
= 640m2
Area of inner Rectangle = 36x12
= 432m2
Area of the road=640-432 =208m2
cost of paving bricks @ $15
=208x15 = $3120. Ans
Area of inner Rectangle 432m2
cost of covering with grass @ $9
= 432x9= $3888.
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