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The Whiz Kids and the Calculators have solved a total of 78 math puzzles. The Whiz Kids solved 60% more puzzles than the Calculators. How many math puzzles has Whiz Kids solved?

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If the Calculators solved x, then the Whiz Kids solved 1.6x
so, now we just have to solve
x + 1.6x = 78
x = 30
so 1.6x = 48

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