Question

A door of length 2.2 m and breadth 0.9 m is fitted in a wall. The dimensions of the wall are
5 m and 3.5 m. Find the cost of whitewashing the wall at 35 per sq m.​

Answer 1

Answer: 543.2

Step-by-step explanation:

area of wall(with door) = 5x3.5=17.5 sq m

area of door = 2.2x0.9=1.98 sq m

area of wall(without door)=15.52 sq m

1 sq m costs = 35

15.52 sq m costs= 35x15.52 = 543.2 (ans)

Answer 2

Answer:

- Area of door portion=2.2 x 0.9=

l.98m2

Area of the wall, including door =

5 x 3.5=17.5m2

Area to whitewash=17.5-1.98=.15.52m2

cost=15.52x35= Rs.543