Question
A’s age is 120% of what he was 4 years ago, But 30% of
what it will be after 5 years. What is his present age?Solution
Let present age of A be x years. => 120% of (x - 4) = 30% of (x + 5) => 4(x - 4) = (x + 5) => 4x – 16 = x + 5 => x = 7 years
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