Question

A classroom is 7 m long, 6.5 m wide and 4 m high. It has one door whose dimensions are
3 m × 1.4 m and three windows whose dimensions are 2 m × 1 m. Find the cost of painting
the interior walls if the cost of painting is 5.25.​

Answer 1

Answer:

 = 7m n = 6.5m and h = 4m ∴ Area of the room = 2 l + bh = 27 + 6.5 4 = 108m2 Area of door = 3 × 1.4 = 4.2m2 Area of one window = 3 × 2 = 6m2 ∴ Area of 3 windows = 3 × 2 = 6m2 ∴ Area of the walls of the room to be colour washed = 108 - 4.2 + 6 = 108 - 10.2 = 97.8m2 ∴ Cost of colour washing @ Rs.

Step-by-step explanation:

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