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A person was asked to state his age in years. His reply was, 'Take my age 4 years hence, multiply it by 3 and then subtract 4 times my age three years ago and you will know how old I am'. What was the age of the person?1. 15 years2. 18 years3. 12 years4. 24 years5. 6 years |
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Answer» Correct Answer - Option 3 : 12 years Given: Take my age 4 years hence, multiply it by 3 and then subtract 4 times my age three years ago Calculation: Let the age of the person be x years According to the question, ⇒ x = 3(x + 4) – 4(x – 3) ⇒ x = 3x + 12 – 4x + 12 ⇒ 2x = 24 ⇒ x = 12 years ∴ The age of the person was 12 years. |
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