Question

A rectangular ground is 90 m long and
32 m broad. In its centre, there is a
circular tank of radius 14 m. Find the cost
of planting grass in the remaining portion
at the rate of 2.50 per m².​

Answer 1

Answer:

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Step-by-step explanation:

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=722×14×14=616m2

∴ Area left for turfing =(2880−616)m2=2264m2

Cost turfing 1m2 area =Rs.2.50

∴ Cost of turfing 2264m2 area

=Rs.2.50×2264

=Rs.5660