Multiple choice

The present age of A is three times of the present age of her daughter and nine-thirteenth of his mother's present age. The sum of ages of all the three persons are 125 years. What is the difference between the age of A's daughter and A's mother A की वर्तमान आयु उसकी पुत्री की वर्तमान आयु से तिगुनी और उसकी माता की वर्तमान आयु का नव-तेरांश है | इन सभी की वर्तमान आयु का योग 125 वर्ष है | A की पुत्री की वर्तमान आयु और माता की वर्तमान आयु के बीच क्या अन्तर है ?

  1. 45 years/वर्ष

  2. 40 years/वर्ष

  3. 50 years/वर्ष

  4. 55 years/वर्ष
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Let daughter's age = d. Then A's age = 3d and A's mother's age = (13/9) × 3d = (13/3)d. Sum: d + 3d + (13/3)d = 125. Solving: (4 + 13/3)d = 125, so (25/3)d = 125, giving d = 15. Daughter = 15 years, mother = (13/3) × 15 = 65 years. Difference = 65 - 15 = 50 years, confirming option C is correct.

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