In a town, 300 students chose science and 160 chose commerce. What is the ratio of science to commerce students in simplest form?
Answer and explanation
Correct answer: D. 15 : 8
- Step 1: Divide both terms by their HCF 20. Step 2. 300 : 160 = 15 : 8. Answer: 15 : 8. Why not the others: 8 : 15 is what you get if you invert the ratio. 300 : 160 is what you get if you leave the ratio unsimplified. 16 : 8 is what you get if you miscount a term.
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