Question

find the total cost of whitewashing the 4 walls of a cuboidal room at rate of 15rs pe meter. the internal measure of cuboidal room are length 10m breadth 4m height 4m

Answer 1

area of white washing = 2(l+b)×h
= 2×14×4
= 112cm^2
1cm^2 = 15 Rs.
112cm^2 = 15×112
= Rs. 1680
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