Multiple choice

Ratio of ages of three persons is 4:7:9, Eight years ago, the sum of their ages was 56. Find the sum of their present ages. तीन व्यक्तियों की आयु का अनुपात 4:7:9 है, आठ वर्ष पहले, उनकी आयु का योग 56 था। उनकी वर्तमान आयु का योग ज्ञात कीजिए।

  1. 64 years 64 वर्ष

  2. 72 years 72 वर्ष

  3. 80 years 80 वर्ष

  4. 88 years 88 वर्ष

  5. None of these इनमें से कोई नहीं

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

Let present ages be 4k, 7k, 9k. Sum = 20k. Eight years ago, sum was 20k - 24 = 56. Solving: 20k = 80, so k = 4. Present sum = 20k = 80. Option C is correct. This involves setting up the age ratio and accounting for the time shift.