Question
The number of cats and dogs in a shelter is 450 and 300,
respectively. When (x + 30) cats and 2x dogs are added, the ratio of cats to dogs becomes 4:3. Find the value of ‘x’.Solution
According to the question,
(450 + x + 30) / (300 + 2x) = 4 / 3
Or, 3(480 + x) = 4(300 + 2x)
Or, 1440 + 3x = 1200 + 8x
Or, 5x = 240
Or, x = 48
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