Question

A door of length 4m and breadth 3m is fitted in the wall . The length of the wall is 16m and the breadth of the wall is 13m 9cm. Find the cost of whitewashing the wall at the rate of rs. 20 per sq m

Answer 1

Answer:₹395 approx

Step-by-step explanation:

Length and breadth of door =4m,3m

Area of door=4*3=12m^2

Length and breadth of wall=16m,13.09m

Area of wall=16*13.09=209.44m^2

Area to be white washed=area of wall-area of door=209.44-12=197.44m^2

Cost of white washing=197.44*20=₹394.88