The internal measurements of a cuboid room are 10m ×8m×4m . On one of its wall three is a window, the meaurement of which
is 2m × 1•5m.Find cost of white washing the four walls of the room ( leaving the window) at rate of ₹55 per sq. m
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thats answer
Step-by-step explanation:
volume of cuboid room = a^3
= 10m ×8m×4m
= 320m^3
area of window = 2m × 1.5 m
= 3m^2
area of 3 windows = 3×3m
= 9 m^2
320-9 m
311m^3
cost ... = 311 × ₹ 55
= ₹ 17,105
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