Question

A door of dimension 3m by 2m on the wall of dimension 15m by 10m find the cost of painting the wall at the rate of Rs 10 per m2​

Answer 1

Answer:

For answer kindly go to the attached.

The answer is Rs 1440/-

Answer 2

Answer:

The area of the wall= lb = 15*10 = 150 sq.m

The area of the door= lb = 3*2 = 6 sq.m

The cost of painting the wall at the rate of Rs 10 per sq.m .

The area of the wall - the area of the door = 150-6 = 143 sq.m = the area of the new wall

The area of the new wall = 144 sq.m

For 143 sq.m it would cost = 144*10 = Rs 1440.

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