Question 6 of 773

A box in the form of a rectangle solid has a square base 5 feet in length and a height of h feet. If the volume of the rectangular solid is 200 cubic feet, which of the following equations may be used to find h?

Answer

Suggested Answer

The suggested answer is C.

Use the formula V = lwh. In this case, l = 5, w = 5, and h = h. Therefore, V = 5 ֳ— 5 ֳ— h = 25h and 25h = 200.
Question 7 of 773
Exam GED Test: Question 7 - Image 1

The diagram represents a large living room. What is the area, in square yards, of the room?

Answer

Suggested Answer

The suggested answer is D.

Divide the floor space into two rectangles by drawing a line segment. The area of the large rectangle = 20 ֳ— 15 = 300 sq. ft. The area of the small rectangle = 10 ֳ—
15 = 150 sq. ft. The total area of floor space = 150 + 300 = 450 sq. ft. Since 9 sq. ft. = 1 sq. yd., 450 sq. ft. ֳ· 9 = 50 sq. yd.
Question 8 of 773

A 3-foot-wide walkway is built around a swimming pool that is 20 feet by 30 feet, as shown in the following figure.

Exam GED Test: Question 8 - Image 1

In order to determine how much flagstone to buy, the homeowner needs to know the total area, in square feet, of the walkway. Which of the following expressions represents this area?

Answer

Suggested Answer

The suggested answer is D.

As you can see from the figure, to find the area of the walkway, you need to subtract the area of the inner rectangle, 20 ֳ— 30 sq. ft., from the area of the outer rectangle, 26 ֳ— 36 sq. ft.: 26 ֳ— 36 ג€" 20 ֳ— 30 sq. ft.
Question 9 of 773

A 3-foot-wide walkway is built around a swimming pool that is 20 feet by 30 feet, as shown in the following figure.

Exam GED Test: Question 9 - Image 1

If the depth of the pool is 6 feet, what volume of water, in cubic feet, is needed to fill the pool?

Answer

Suggested Answer

The suggested answer is E.

Since the average depth of the pool is 6 ft., the water forms a rectangular solid with dimensions 30 by 20 by 6. The volume of water is the product of these three numbers: 30 ֳ— 20 ֳ— 6 = 3,600 ft.
Question 10 of 773

A 3-foot-wide walkway is built around a swimming pool that is 20 feet by 30 feet, as shown in the following figure.

Exam GED Test: Question 10 - Image 1

What is the total area, in square feet, of the pool and the walkway?

Answer

Suggested Answer

The suggested answer is D.

Taken together, the pool and the walkway form a rectangle with dimensions 36 by 26. The total area is the product of these numbers: 36 ֳ— 26 = 936 sq. ft.