Multiple choice

Seven years ago, the ratio of the age of A to that of B, was 7 : 9. C is 12 years older than A and 12 years younger than B. What is C's present age? सात वर्ष पहले, A का B की आयु से अनुपात, 7 : 9 था | C, A से 12 वर्ष बड़ा है और B से 12 वर्ष छोटा है | C की वर्तमान आयु है ?

  1. 93 years/वर्ष

  2. 103 years/वर्ष

  3. 105 years/वर्ष

  4. 96 years/वर्ष

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Seven years ago, A:B = 7:9, so let A's age = 7x, B's age = 9x. Currently, A = 7x+7, B = 9x+7. Given C is 12 years older than A and 12 years younger than B: C = A+12 = B-12. Equating: 7x+7+12 = 9x+7-12, which gives 7x+19 = 9x-5, so 2x = 24 and x = 12. C's present age = 7(12)+7+12 = 84+7+12 = 96 years. Option D is correct.