Free Practice Question
PS · Problem Solving
555-605
Number Properties
What is the ratio of the number of odd integers to the number of even integers between -12.5 and 12.5?
Answer Choices
Correct answer marked belowA
9/11
12/13
Correct
C
11/13
D
11/22
E
11/23
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Explanation
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Official Explanation
Official
To find the ratio of odd integers to even integers between -12.5 and 12.5, we first need to identify the integers within this range and count the odd and even numbers. The integers from -12.5 to 12.5 are: -12, -11, -10, -9,…
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Comments
2
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N
NainikaJun 5, 2024
this helped me
H
hariNov 25, 2024
Good question
What this question tests
What it tests
Your command of divisibility, primes, factors, parity, and how the GMAT tests properties of integers.
Common trap
Forgetting that 1 is not prime, that 0 is divisible by every integer, or that negative numbers flip your assumptions.
Details
Difficulty
555-605
Type
PS
Category