Question

an open box of length 1.5 m breadth 1 m and height 1m is to be made for use on trolley for carrying Garden West how much sheet metal will be required to make this box?? The inside and outside surface of the box is painted with rust proof paint @ 150 how much will it cost???

Answer 1

Answer:

Rs 1950

Step-by-step explanation:

Find the inner total surface area of an open box:

Total surface area = length x Breadth + 2(Length + Breadth) x height

Total surface area = 1.5 x 1 + 2(1.5 + 1) x 1 = 6.5 m²

Find the inner and outer area of the box:

Total surface area = 6.5 x 2 = 13 m²

Find the cost:

1 m² = Rs 150

13 m² = 150 x 13 = Rs 1950

Answer: Rs 1950