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Question

Given a reactangular ground is 90m long and 32m broad. In the middle of the ground there is a circular thank of radius 14 metres. Find the cost of turfing the remaining portion at the rate of Rs.2.50 per square meter.

A
Rs.5660
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B
Rs.4295
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C
Rs.5525
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D
Rs.6250
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Solution

The correct option is A Rs.5660
Length of rectangle =90m
Breadth of rectangle =32m
Area of rectangular ground =90m×32m=2880m2
Radius of circular tank =14m
Area enclosed by circular tank in the ground
πr2=227×14×14=616m2
Area left for turfing =(2880616)m2=2264m2
Cost turfing 1m2 area =Rs.2.50
Cost of turfing 2264m2 area
=Rs.2.50×2264
=Rs.5660

782729_784101_ans_a4f3a91883c4419f9defe1bf032740fe.JPG

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