Multiple choice

The ratio between the ages of M and N is 5 : x. Shweta is 9 years younger than A. After 9 years, age of A will be 33 years. The difference of the ages of N and M is as same as the present age of A. What will be the value of x? M और N की वर्तमान आयु के बीच अनुपात 5 : x है | M, A से 9 वर्ष छोटी है | 9 वर्ष बाद A की आयु 33 वर्ष हो जायेगी | N और M की आयु में उतना ही अंतर है जितनी A की वर्तमान आयु है | x के स्थान पर क्या आयेगा ?

  1. 21

  2. 37

  3. 17

  4. 13
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D Correct answer
Explanation

After 9 years, A's age will be 33, so A's present age = 33 - 9 = 24. M is 9 years younger than A, so M = 24 - 9 = 15. Difference between N and M equals A's present age, so N - 15 = 24, meaning N = 39. The ratio M:N = 5:x means 15:39 = 5:x. Solving: 15x = 195, so x = 13.

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