Question

The length is 8m breath is 5m height is 4m​

Answer 1

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Given that,

length = 5 m

breadth = 4 m

height = 3 m

Area of wall = 2h (L+ b)

= 2 * 3 (4 +5 )

= 6*9

= 54 sq m

area of cieling = l*b

= 5 * 4

= 20 sq m

total area= area of cieling + area of cieling

= 54 + 20 sq m

= 74 sq m

cost of white washinf for 1 sq m = rs 50

so for 74 sq m

= 50 * 74 sq m

= rs 3700