Question
The wall in is to be painted. If one can of paint covers 110 square feet, how many cans of paint will be needed if only one coat of paint is applied?
- 3
- 4
- 5
- 6
The correct answer is: 4
4 cans.
We know that area of trapezoid = ½ x (sum of parallel sides) x distance between them.
=> area = ½ x(18 + 22) x 23 = 460 sq ft.
Area of doorway = area of a rectangle.
=> area = 3 x 7 = 21 sq ft.
Area of wall without the doorway = 460 – 21 = 439 sq ft.
1 can of paint covers 110 sq ft.
Number of can required to cover 439 sq ft = 439/110 = 3.99 = 4 cans.
Since number of cans can be only whole integers, we’ll need 4 cans.
Related Questions to study
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From the given figure, we can observe that the plane cuts the prism making an angle of 0 degrees with the base of the prism. Thus, we’ll get a cross section which will be similar to the base of the prism, i.e., a triangle.
Describe the cross section.
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Describe the cross section.
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Describe the cross section.
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Know which shape denotes what.
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