medium · GMAT Quant
A hobbyist group of 90 people collects Stamps, Coins, and Postcards. 45 collect Stamps, 40 collect Coins, and 35 collect Postcards. 20 collect both Stamps and Coins, 15 collect both Coins and Postcards, and 10 collect both Stamps and Postcards, while 5 people collect all three.
How many people collect only Postcards?
- 25
- 15
- 20
- 5
- 10
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?