Multiple choice

The present age of Rohit and Virat are in ratio of 9 : 8 respectively. After 10 years the ratio of their ages will be 10 : 9. What is the difference in their present age ? रोहित और विराट की वर्तमान आयु क्रमशः 9:8 के अनुपात में है। 10 वर्ष बाद उनकी आयु का अनुपात 10:9 होगा। उनकी वर्तमान आयु में कितना अंतर है?

  1. 14 years 14 वर्ष

  2. 12 years 12 वर्ष

  3. 15 years 15 वर्ष

  4. 10 years 10 वर्ष

  5. none of these इनमें से कोई नहीं
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Let Rohit's present age = 9x and Virat's present age = 8x. After 10 years: (9x + 10)/(8x + 10) = 10/9. Cross-multiply: 9(9x + 10) = 10(8x + 10), so 81x + 90 = 80x + 100, giving x = 10. Present ages: Rohit = 9 * 10 = 90, Virat = 8 * 10 = 80. Difference = 90 - 80 = 10 years. This matches option D.

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