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Today is Alka's birthday. 3 years from today she will be twice as old as she was 12 years ago. How old is Alka today ?1. 23 years2. 24 years3. 26 years4. 27 years |
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Answer» Correct Answer - Option 4 : 27 years Given: 3 years from Alka's birthday, she will be twice as old as she was 12 years ago Calculation: Let Alka’s age today be x years. Then, Alka’ age after 3 year = (x + 3) years. 12 years ago, Alka's age = (x - 12) years According to question: ⇒ x + 3 = 2 × (x - 12) ⇒ x + 3 = 2x – 24 ⇒ x = 27 |
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