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Age of Aman’s Sister and Aman are in ratio 5 : 7. If Age of Aman and his father is in ratio 1 : 2 and age of his father 3 years hence is 45. Find the Age of Aman’s sister.1. 15 years2. 18 years3. 20 years4. 22 years5. 10 years |
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Answer» Correct Answer - Option 1 : 15 years Given: Ratio of present age of Aman’s sister and Aman = 5 : 7 Ratio of present age of Aman and his father = 1 : 2 Calculation: Present Age of his father = 45 – 3 = 42 years So, present age of Aman = ½ × 42 = 21 years As ratio of Aman’s sister and Aman = 5 : 7 ⇒ so, age of Aman’s sister = 5/7 × 21 = 15 years |
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