English, asked by Anonymous, 5 months ago

the length, breath and hight of a room are 5m, 4m ,3 m respectively. find the cost of whitewashing the wall of the room and the ceiling rate of
Rs 7.50 per m² ?????




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Answers

Answered by aman12345683
1

Answer:

The cost of white washing the wall of the room and the ceiling is Rs 555

Explanation:

Length, breadth and height of a room are 5 m, 4 m and 3 m.

Area of four walls of the room =2h(l+b)

=2×3(5+4)

=6(9)

=54 m²

Area of the ceiling =l×b

=5×4

=20 m².

Total area of the four walls and the ceiling of the room

=54+20

=74 m²

Cost of white washing = Rs 7.50 per m²

Total cost of white washing =74×7.50= Rs 555

Answered by rajeshupadhyaya
0

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