If 6 (A's capital) = 8 (B's capital) = 10 (C's capital). Then the ratio of their capitals is:
Correct answer: C. 20:15:12
- A. 3:4:5
- B. 12:15:20
- C. 20:15:12
- D. 6:8:10Quiz Mode Feature
Explanation
From 6A = 8B = 10C, let the common value be k. Then A = k/6, B = k/8, and C = k/10; multiplying by 120 gives the capital ratio 20:15:12. The likely mistake is option d, 6:8:10, which copies the coefficients instead of taking their reciprocals.
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Ratios compare quantities in the same units, while proportions state that two ratios are equal. Problems cover simplification, division in a given ratio, direct and inverse variation, scale, and missing terms, with attention to the difference between a ratio and a fraction representing part of a whole.
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