The ratio of two numbers is 4:7. If each number is decreased by 4, the ratio becomes 5:9. Find the smaller numbers.
Let the two numbers be 4x and 7x. => (4x-4)/(7x-4) = 5/9 => 36x – 36 = 35x – 20 => x = 16 The smaller numbers = 4×16 = 64
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