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Five years ago, the ages of Bali and Geeta were in the ratio of 3 : 4 respectively. Ten years hence the respective ratio of their ages will be 6 : 7. What is the difference between their present ages?1. 72. 23. 54. 10 |
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Answer» Correct Answer - Option 3 : 5 Let the age of Bali five years ago be 3x years, and Let the age of Geeta five years ago be 4x years, So, their present ages are (3x + 5) and (4x + 5), respectively. Also, there ages 10 years hence will be (3x + 15) and (4x + 15), respectively. According to the question, we have: (3x + 15)/(4x + 15) = 6/7 On solving for x, we get: x = 5 years So, the required difference = 4x + 5 – (3x + 5) = 5 ∴ The difference between their present ages is 5 years. |
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