Question

a room is 5 m long,4.4 m wide and 2.5 m high. find the cost of white washing its four walls at the rate of rupees 3.80 pet sq m.​

Answer 1

Answer:

Lateral surface area (area of 4 walls) = 2*h*(l+b)

= 2* 2.5*(5+4.4)

= 5*9.4

= 47 Square m

Cost = area * cost per sq m

= 47 * 3.80 = Rs 178.6

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