In an operating range of 40 - 200 inches of water, 50 percent of the span would be which value?

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Multiple Choice

In an operating range of 40 - 200 inches of water, 50 percent of the span would be which value?

Explanation:
Find the halfway point between the two limits. The range runs from 40 to 200 inches of water, so the total span is 200 − 40 = 160. Half of that span is 80, and starting from the lower limit gives 40 + 80 = 120 inches of water. Equivalently, the midpoint is (40 + 200) / 2 = 120. So the value at 50% of the span is 120 inches of water.

Find the halfway point between the two limits. The range runs from 40 to 200 inches of water, so the total span is 200 − 40 = 160. Half of that span is 80, and starting from the lower limit gives 40 + 80 = 120 inches of water. Equivalently, the midpoint is (40 + 200) / 2 = 120. So the value at 50% of the span is 120 inches of water.

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