If the cooling tower is on the 8th floor, how many feet above the first floor is it?

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Multiple Choice

If the cooling tower is on the 8th floor, how many feet above the first floor is it?

Explanation:
Think in terms of floor-to-floor height and how many floor gaps you need to cover. From the first floor up to the eighth floor there are seven floor gaps. In this problem, the standard floor height used for calculations is 15 feet per floor. So seven floors times 15 feet per floor equals 105 feet. Therefore, the cooling tower is 105 feet above the first floor. If you used a 12-foot floor height, you’d get 84 feet, which isn’t one of the options, so the problem is using 15 feet per floor.

Think in terms of floor-to-floor height and how many floor gaps you need to cover. From the first floor up to the eighth floor there are seven floor gaps. In this problem, the standard floor height used for calculations is 15 feet per floor. So seven floors times 15 feet per floor equals 105 feet. Therefore, the cooling tower is 105 feet above the first floor.

If you used a 12-foot floor height, you’d get 84 feet, which isn’t one of the options, so the problem is using 15 feet per floor.

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