The walls of a room are left angular is wall is 3 metre long and 2 metre wide find the cost of whitewashing the walls when the rate of whitewashing is 10 Paisa per square centimetre
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The area of wall is
L×B
3×2 = 6 m
the 6 m in centimeter
600cm
then cost of paint
600×10 = 6000 pa or 60 Rs
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