Question

if perimeter of a room is 28 m and height is 2.5 m then the cost of white washing its walls at the rate of 5 per square meter​

Answer 1

Step-by-step explanation:

Area of room = l × b

28 = 2.5 × b

28/2.5 = b

11.2 = b

1 m² ----------- 5

11.2 ------------(?)

11.2 × 5

56

Answer 2

COST OF WHITE WASHING ITS WALLS AT RATE OF SQUARE METRE IS

PERIMETER ×HEIGHT

=28×2.5

=70

70×5

350

THERFORE COST FOR WHITE WASHING ITS WALLS AT RATE OF SQUARE PER METRE IS 350