Multiple choice

The ratio of the present ages of A and B is 8 : 9. After 9 years, the ratio will become 19 : 21. C is 3 years younger to B. What is the present age (In years) of C ? A और B की वर्तमान आयु का अनुपात 8:9 है। 9 वर्षों के बाद, अनुपात 19:21 हो जाएगा। C, B से 3 वर्ष छोटा है। C की वर्तमान आयु (वर्षों में) क्या है?

  1. 49

  2. 48

  3. 51

  4. 52

  5. 54
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Let A's present age = 8x, B's present age = 9x. After 9 years: (8x+9)/(9x+9) = 19/21. Cross-multiplying: 21(8x+9) = 19(9x+9), 168x + 189 = 171x + 171, 18 = 3x, x = 6. A's age = 8×6 = 48, B's age = 9×6 = 54. C is 3 years younger than B, so C's age = 54 - 3 = 51 years. Option C is correct.

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