hard · GMAT Quant
A researcher assigns unique codes to samples using three-digit integers with strictly increasing digits. If the sum of the digits must be a multiple of 3
How many such codes can be formed using digits from the set 1, 2, 3, 4, 5, 6, 7, 8, 9?
- 27
- 28
- 30
- 33
- 42
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?