hard · GMAT Quant
An automated trading algorithm generates a 4-day strategy log using the actions Buy (B), Sell (S), and Hold (H). A valid log must utilize exactly two of these three actions over the 4-day period.
How many unique 4-day strategy logs satisfy this requirement?
- 42
- 81
- 36
- 21
- 60
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?