Question

2. A door of length 4 m and breadth 3 m is fitted in a wall. The length of the wall
is 16 m and the breadth of the wall is 13 m 9 cm. Find the cost of whitewashing
the wall at the rate of £20 per m².​

Answer 1

Answer:

area of the door = 12m²

area of the wall = 209.44m²

cost of whitewashing the wall = (209.44 - 12)m² X £20= £3948.8