Question

A path 5 m wide runs along inside a square park of side 80m. Find the area of the path. Also find the cost of cementing it at the rate of ₹ 25 per square metre.

Answer 1

Answer:

Area of path = 1700 $m^{2} }$

Cost = ₹42,500

Step-by-step explanation:

a (side) = 80 m

Area of inner square = $80^{2}$ = 6400 $m^{2} }$

Width of path = 5 m

Outer side of square = 80 + 5 + 5 = 90 m

Area of outer square = $90^{2}$ = 8100 $m^{2} }$

Area of path = 8100 - 6400 = 1700 $m^{2} }$

Cost of cementing per $m^{2} }$ = ₹25

Cost of cementing 1700 $m^{2} }$ = 1700 × 25

                                              = ₹42,500