Algebra practice question

Answer: 360

From 8:00 to 10:24 is 144 minutes, so the rate is 36/144 = 0.25 percentage points per minute. Falling 90 points takes 90/0.25 = 360 minutes.

Common wrong answers

If you answered 6

6 is the answer in hours, but the question asks for minutes.

If you answered 144

144 is the length of the first interval.

If you answered 400

400 divides 100 by 0.25, the time to reach 0%, not 10%.

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