Question

13. A door of length is 4 m and breadth is 3 m is
fited in the wall. The length of the wall is 15.4 m
and breadth is 13.6 m. Find the remaining area
of the wall. Also, find the cost of whitewashing
the wall at the rate of 20 per m².​

Answer 1

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

Area of wall will be = 209.44 m^2

Area of remaining wall = 209.44 - 12 = 197.44 m^2

Cost of whitewashing = 20*197.44 = 3948.8 rupees

Answer 2

hey mate

here goes ur answer ⏩⏩⏩

area of wall = 15.4*13.6=209.44 m2

area of door =4*3=12 m2

wall's area leaving door =209.44-12=197.44 m3

cost of whitewash =197.44*20=3948.8

cost of whitewashing wall is rs 3948.8.

hope it helps uhhh....