Question
In a park, the ratio of adults to children is 7:5. If the
number of adults was decreased by 21 and children increased by 14, then their numbers become equal. Find the original number of children in the park.Solution
ATQ,
Let the number of adults and children be '7n' and '5n', respectively.
So, 7n - 21 = 5n + 14
Or, 'n' = 17.5
Therefore, number of children = 17.5 × 5 = 87.5
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