Question

The labour charge of painting 1 sq. m of wall is Rs 25.50. Find the charge of painting 30 sq. m of the wall.

Answer 1

Answer:

Area of one wall =length×height=5×8=40 sq.m

Area of another adjacent wall =width×height=3×8=24 sq.m

Area of 4 walls =2×40+24×2−4.5−2.25=128−6.75=121.25

Cost of painting the four walls =121.25×25=3,031.25 Rs.

So, we don't require statement III.

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

the charge of painting 30 sq. m of the wall = 30×25.50 = Rs. 765