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Re: GRE Math Challenge #106- Integer n will be randomly selected [#permalink]
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Re: GRE Math Challenge #106- Integer n will be randomly selected [#permalink]
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sandy wrote:
Integer n will be randomly selected from the integers 1 to 13, inclusive.

Quantity A
Quantity B
The probability that n will be even
The probability that n will be odd


A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.

Kudos for the right answer and explanation


between 1-13 integers, 7 are ODD (1, 3, 5, 7, 9, 11, 13) and 6 are EVEN (2, 4, 6, 8, 10, 12) and total integers are 13.

So, we get:
Quantity A: 6/13
Quantity B: 7/13

Therefore, B is the right answer.
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