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At a certain baseball game, each of the spectators is either

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At a certain baseball game, each of the spectators is either

by BTGmoderatorLU » Wed Sep 05, 2018 1:48 pm

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Source: Princeton Review

At a certain baseball game, each of the spectators is either a Bullfrogs fan or a Chipmunks fan, and no one is both. What is the ratio of Bullfrogs fans to Chipmunks fans among spectators at the baseball game?

(1) The number of Chipmunks fans among the spectators is 20% greater than the number of Bullfrogs fans.
(2) The total number of spectators at the baseball game is 4,400.

The OA is A.
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by Jay@ManhattanReview » Wed Sep 05, 2018 8:23 pm

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BTGmoderatorLU wrote:Source: Princeton Review

At a certain baseball game, each of the spectators is either a Bullfrogs fan or a Chipmunks fan, and no one is both. What is the ratio of Bullfrogs fans to Chipmunks fans among spectators at the baseball game?

(1) The number of Chipmunks fans among the spectators is 20% greater than the number of Bullfrogs fans.
(2) The total number of spectators at the baseball game is 4,400.

The OA is A.
Say the number of Bullfrogs fan is b and the number of Chipmunks fans is c.

We have to find out the value of b/c.

Let's take each statement one by one.

(1) The number of Chipmunks fans among the spectators is 20% greater than the number of Bullfrogs fans.

Say b = 100, then c = 100 + 20% of 100 = 120

Thus, b/c = 100/120. Sufficient.

(2) The total number of spectators at the baseball game is 4,400.

We do not know how many of 4000 are Chipmunks fans and Bullfrogs fans. Insufficient.

The correct answer: A

Hope this helps!

-Jay
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