In this question, we are looking for the no. of people.

Statements 1 and 2 alone are not sufficient because by itself, each statement has 3 variables for you to solve. 1st variable, the admission fee, 2nd variable the no of people attended and 3rd the total amount. Neither statement

alone allows you to solve.

Thus, the answer is C.

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If this question is a PS question, the working as follows:

Let x be the admission fee per person

Let y be the no of person

Let z be the total admission fees

Statement 1:

(x - 0.75) * (y + 100) = z

Statment 2:

(x + 1.50) * (y - 100) = z

Thus, statement 1 = statment 2

(x - 0.75) * (y + 100) = (x + 1.50) * (y - 100)

=> xy + 100x - 0.75y -75 = xy - 100x + 1.50y - 150

=> - 0.75y - 75 = 1.50y - 150

=> 2.25y = 75

=> y = 75/2.25

=> ~33ppl

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Jimmy Low, Frankfurt, Germany

Blog: http://mytrainmaster.wordpress.com

GMAT Malaysia: http://gmatmalaysia.blogspot.com