Question

A part of 1 m wide runs around and inside a rectangular garden of length 40 m and width 20 m. Find the cost of levelling the path at the rate of Rs.3.75 per squre metre (in Rs.).
A. 470
B. 520
C. 580
D. 435

Answer 1

Correct Answer - D

Required path area
`=40xx20-[(40-2)xx(20-2)]`
`=800-38(18)=116m^(2)`
`"Cost of levelling the path"=116xx3.74=Rs.435`