Social Sciences, asked by harkishan2841, 1 year ago

The Length breadth and height of a room are 5 M 4 m 3 M respectively find the cost of whitewashing the walls of the room and the ceiling at the rate of 7. 50 per metre square

Answers

Answered by Anonymous
1
its not the social science question
Answered by Diksha12341
2

Explanation:

Length (l) of room = 5m

Breadth (b) of room = 4m

Height (h) of room = 3m

It can be observed that four walls and the ceiling of the room are to be white washed.

Total area to be white washed = Area of walls + Area of ceiling of room

= 2lh+2bh+lb

= [2×5×3+2×4×3+5×4]

= (30+24+20)

= 74

Area = 74 m2

Also,

Cost of white wash per m2 area = Rs.7.50 (Given)

Cost of white washing 74 m2 area = Rs. (74×7.50)

= Rs. 555

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