Question
The ratio of two numbers is 4:5. If each number is
decreased by 4, the ratio becomes 7:9. Find the smaller numbers.Solution
Let the two numbers be 4x and 5x. => (4x-4)/(5x-4) = 7/9 => 36x – 36 = 35x – 28 => x = 8 The smaller numbers = 4 × 8 = 32
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