Question

A play ground is 220 m long and 100 m broad. A path 20 m wide runs breadth wise across the ground in the middle. The cost of gravelling the path at the rate of Rs. 10 per square meter will be----

• A. $Rs.2200$
• B. $Rs.220$
• C. $Rs.20000$
  
• D. $Rs.2000$

Answer 1

The correct option is C $Rs.20000$

Let ABCD be the play ground and PQRS be the path laid breadthwise.
Length of the path = 220 m
Breadth of the path = 20 m
$\therefore$ Area of a path = Length $\times$ Breadth
= 100 $\times$ 20
= 2000 $m^2$
Cost of gravelling 1 sq. m = Rs 10
$\therefore$ Cost of gravelling 2000 sq. m = 2000 $\times$ 10
= Rs 20000
Hence the cost of gravelling the path is Rs. 20000