Question

the dimension of a room are length is equal to 8 metre breadth is equal to 5 metre height is equal to 5 metre find the cost of tempering its four walls at the rate of 40 rupees per metre square
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Answer 1

l=8m

b=5m

h=5m

CSA=2h(l+b)

=2*5(5+8)

=10*13

=130 m²

Cost=40*130

=₹5200

Think so its correct!!!!!