Advanced MathEasy–MediumTwo numbers from a ratio and a product
Advanced Math practice question
One positive number is 3 times another, and their product is 48. What is the larger number?
Answer: 12
Let the smaller be s: 3s · s = 3s² = 48 → s² = 16 → s = 4. The larger is 12.
Common wrong answers
- If you answered 4
- 4 is the smaller number.
- If you answered 16
- 16 is s², not a number in the pair.
- If you answered 144
- 144 is 12², squaring the larger number.
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