GMAT Number Properties: How many integers x satisfy both…
Question
How many integers x satisfy both 2<x ≤ 4 and 0 ≤ x ≤ 3?
- 5
- 4
- 3
- 2
- 1
Topics: inequalities, number theory, counting evenly spaced integers
Solution
Step 1
We intersect the two ranges by taking the tighter lower and upper bounds that x must satisfy simultaneously.
2 < x ≤ 4 0 ≤ x ≤ 3 Combined: 2 < x ≤ 3
Step 2
We list the integers in the combined range and count them.
2 < x ≤ 3 x is an integer x = 3 Count = 1
Answer
1 (E)
