Advanced MathHardTwo numbers, one triple the other, from a product
Advanced Math practice question
One positive number is three times another, and their product is 27. What is the sum of the two numbers?
Answer: 12
Let the smaller be n: n(3n) = 27, so 3n² = 27, n² = 9, n = 3. The numbers are 3 and 9; their sum is 12.
Common wrong answers
- If you answered 3
- 3 is the smaller number alone.
- If you answered 9
- 9 is the larger number alone.
- If you answered 27
- 27 is the product.
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