Multiple choice

10 years back, the sum of the ages of mother and her daughter was 45. If the ratio of their present ages be 9:4, then what is the ratio between their ages after 5 years? 10 वर्ष पहले एक माता और पुत्री की आयु का योग 45 वर्ष था। यदि उनकी वर्तमान आयु का अनुपात 9 : 4 है तो 5 वर्ष पश्चात उनकी आयु के बीच का अनुपात कितना होगा?

  1. 5:3

  2. 3:2

  3. 2:1

  4. 4:3

  5. None of these इनमे से कोई नही
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C Correct answer
Explanation

Let present ages be 9x and 4x. Ten years ago: (9x-10) + (4x-10) = 45, so 13x = 65 and x = 5. Present ages are 45 and 20 years. After 5 years, ages will be 50 and 25, giving ratio 50:25 = 2:1. Option A (5:3) would be 62.5:37.5 and Option B (3:2) would be 67.5:45.

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