The correct answer is D. 16 : 18 : 15. To find the ratio a:b:c, you must first make the value of b the same in both ratios by finding the least common multiple (LCM) of 9 and 6, which is 18. Multiply the first ratio (8:9) by 2 to get 16:18. Multiply the second ratio (6:5) by 3 to get 18:15. This gives you the combined ratio a:b:c=16:18:15.
If a : b = 8 : 9 and b : c = 6 : 5, then find a : b : c?
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This question is part of 🧩 Logical Reasoning within the broader 🧠 Aptitude Mastery subject and appears in the ETEA Educational Testing and Evaluation Agency preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.