medium · GMAT Quant
A two-digit number has tens digit t and units digit u, and the number equals 9 times the sum of its digits.
Which equation correctly represents this relationship?
- tu = 9(t + u)
- 10t + u = 9(t + u)
- 10t + u = 9tu
- t + u = 9(10t + u)
- 10u + t = 9(t + u)
Sign up free to see the explanation and track your rank →
More GMAT Quant practice
- Including both endpoints, how many distinct integer price points are in this range?
- Which of the following expressions must result in a positive value?
- Which property of arithmetic justifies that first step?
- Which of the following must also be an even integer?
- Which of the following inequalities correctly represents this range?
- Which of the following includes the number 0?
- How many unique meal combinations can a customer create?
- What is the probability that the lightbulb is functional?