Question
A’s age is 160% of what he was 3 years ago, But 40% of
what it will be after 3 years. What is his present age?Solution
Let present age of A be x years. => 160% of (x - 3) = 40% of (x + 3) => 4(x - 3) = (x + 3) => 4x – 12 = x + 3 => x = 5 years
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(ii) Processes
(iii) Procedure
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...
