If a total of 30 puppies is displayed in the two windows of a pet store, how many of the puppies are female?

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If a total of 30 puppies is displayed in the two windows of a pet store, how many of the puppies are female?

by VJesus12 » Tue Sep 22, 2020 7:18 am

00:00

A

B

C

D

E

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If a total of 30 puppies is displayed in the two windows of a pet store, how many of the puppies are female?

1. 3/4 of the puppies in the left are male
2. 1/3 of the puppies in the right are female

Source: Princeton Review

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Re: If a total of 30 puppies is displayed in the two windows of a pet store, how many of the puppies are female?

by swerve » Tue Sep 22, 2020 12:19 pm

00:00

A

B

C

D

E

Global Stats

VJesus12 wrote:
Tue Sep 22, 2020 7:18 am
If a total of 30 puppies is displayed in the two windows of a pet store, how many of the puppies are female?

1. 3/4 of the puppies in the left are male
2. 1/3 of the puppies in the right are female

Source: Princeton Review
1) Info about left window only what left right combination could be (12,18) and (24,6).
Not sufficient $$\Large{\color{red}\chi}$$

2) Info about right window only what left right combination could be (12,18) and (24,6).
Not sufficient $$\Large{\color{red}\chi}$$

Combining 1 and 2

Both the cases (12,18) and (24,6) are possible giving different answers.

Therefore, E

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