Question

A path $1m$ wide is built inside a square park of side $30m$ along its sides. Find the area of the path. Calculate the cost of constructing the path at the rate of $Rs.70per{m}^2$.

Answer 1

R.E.F. Image.

Area of path $=(30{)}^2-(28{)}^2$

$=116m^2$

cost $=116\times 70=8120Rs.$