Question

the Length breadth and height of a hall 7m 5m and 4 m respectively it has two doors measuring 3 m× 2m metre each and 4 Windows measuring 2 m × 1 me each find the cost of whitewashing all the four walls and ceiling of the hall at rhe rate of rupees 200 per metre square​

Answer 1

Answer:

14,000

Step-by-step explanation:

Answer 2

The amount of money required to whitewash all the four walls and ceiling of the hall = Rs. 22200

Area of the 4 walls of the hall = 2 × 4 × (7+5) = 96 cm²

Area of all the windows in the hall = 4 × 2 × 1 = 8 m²

Area of all the doors in the hall = 2 × 3 × 2 = 12 m²

Area of the ceiling = 7 × 5 = 35 cm²

Area of the hall to be whitewashed = 96 -8 - 12 + 35 = 111 m²

The cost of whitewashing the hall = 111 × 200 = Rs. 22200