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Asked in PPSC, FPSC and other one-paper exams (compiled from unofficial resources).

Ratios, Proportions & PercentagesDirect and Inverse Variations

If a girl jumps 820 times in an hour, how many times does she jump in 30 minutes?

A.410Correct answer
B.420
C.400
D.205

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Quick fact: Since 30 minutes is half of an hour, the number of jumps is $\frac{820}{2} =$ 410.

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