Question

In a square Park of side 80 m , a pathway of with 5 is to be constructed. find the area of the pathway.​

Answer 1





Join / Login

Class 7

>>Maths

>>Perimeter and Area

>>Perimeter and Area of Squares and Rectangles

>>A path 5 cm wide runs along inside a squ

Question



A path 5 cm wide runs along inside a square park of side 100 cm. Find the area of the path . Also find the cost of cementing at the the rate of Rs 250 per 10 sq.cm.

Medium

Open in App

Solution



Verified by Toppr

Given inner side of square park, s=100 cm 

Area of inner square =1002=10000 cm2

width of path,w=5 cm

Outer side of square =100+5+5=110 cm 

Area of outer square =1102=12100 cm2 

Area of path =12100−10000=2100 cm2

Cost of cementing at the rate of Rs 250 per 10 sq cm = Rs 250×210= Rs 52500

∴ Cost of cementing a 2100 cm2 path =Rs. 52500