AlgebraHardNumber from a quarter and a difference
Algebra practice question
A quarter of three times a number is 18 less than three times the number. What is the number?
Answer: 8
3n/4 = 3n − 18 gives 9n/4 = 18, so n = 8.
Common wrong answers
- If you answered 6
- 6 is a quarter of 24, one side of the equation.
- If you answered 24
- 24 is three times the number.
- If you answered 72
- 72 solves 3n/4 = 18 alone.
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