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One animal is to be selected from a group of 60 animals. The
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09 Sep 2020, 10:32
09 Sep 2020, 10:32
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Question Stats:
62% (01:09) correct
37% (01:08) wrong based on 70 sessions
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One animal is to be selected from a group of 60 animals. The probability that the selected animal will be a cat is 0.35, and the probability that the selected animal will be a female cat is 0.2.
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Quantity A |
Quantity B |
The number of male cats in the group |
10 |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Re: One animal is to be selected from a group of 60 animals. The
[#permalink]
09 Sep 2020, 10:32
09 Sep 2020, 10:32
Expert Reply
Post A Detailed Correct Solution For The Above Questions And Get A Kudos.
Question From Our New Project: GRE Quant Challenge Questions Daily - NEW EDITION!
For more theory and practice see our GRE - Math Book
Question From Our New Project: GRE Quant Challenge Questions Daily - NEW EDITION!
For more theory and practice see our GRE - Math Book
Re: One animal is to be selected from a group of 60 animals. The
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09 Sep 2020, 23:27
09 Sep 2020, 23:27
2
Quote:
One animal is to be selected from a group of 60 animals. The probability that the selected animal will be a cat is 0.35, and the probability that the selected animal will be a female cat is 0.2.
Step 1: understanding the question
Total animals are 60 and probability or chance of selecting a cat is 0.35 or 35%. That means 35% of the animals are cats, hence cats are 0.35*60 = 21
Also, probability or chance of selecting a female cat is 0.2 or 20%. That means 20% of the animals are female cats, hence female cats are 0.2*60 = 12
Quote:
Quantity A The number of male cats in the group
Step 2: Calculating number of male cats
Total cats = 21
Female cats = 12
Male cats = 9
Hence, Quantity B is greater
B is correct
