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Question 42

A household cuts monthly electricity use of 360 kilowatt-hours by 25%. Enter the new number of kilowatt-hours.

Correct answer

270

Explanation

A 25% cut leaves 75%, so 360 x 0.75 = 270 kilowatt-hours. Multiplying by 0.25 gives 90, which is the amount saved rather than the remaining use.

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Question 42: A household cuts monthly electricity use of 360… · Percentages · Questena