Question
70% of one number is equal to 50% of another number. If
the sum of both numbers is 420, find the difference between them.Solution
Let the numbers be ‘x’ and ‘y’ respectively According to the question, 0.70x = 0.50y Or, x/y = 5/7 Therefore, (5 + 7) units = 420 Or, 1 unit = 35 Therefore, difference = 7 – 5 = 2 units = 70
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