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Concert DS

Expert replies
by pharmxanthan » Tue Oct 05, 2010 4:04 pm
Each person who attended a certain concert paid the same price for a ticket. How many people attended the concert?
A) If the ticket price had been $6 more and 100 fewer people had attended the concert, the total revenues from ticket sales would have been the same.
B) If the ticket price had been $6 less and 100 more people had attended the concert, the total revenues from ticket sales would have been $1200 less.

[spoiler]OA is C
But I am getting the same two variable equation from both A and B. [/spoiler]
Join the discussion
Source: — Data Sufficiency |

by ashokkadam » Tue Oct 05, 2010 10:27 pm
Lets there be X persons who attended and each person paid 'p' $. So total revenues = pX

Stmt#1: (p + 6)(X-100) = pX
pX - 100p + 6X - 600 = pX
6X - 100p = 600.

Stmt#2: (p-6)(X+100) = pX - 1200
pX + 100p - 6X -600 = pX - 1200
100p - 6X = -600

So you are correct. E has to be answer!!!

pharmxanthan wrote:Each person who attended a certain concert paid the same price for a ticket. How many people attended the concert?
A) If the ticket price had been $6 more and 100 fewer people had attended the concert, the total revenues from ticket sales would have been the same.
B) If the ticket price had been $6 less and 100 more people had attended the concert, the total revenues from ticket sales would have been $1200 less.

[spoiler]OA is C
But I am getting the same two variable equation from both A and B. [/spoiler]
Force and mind are opposites; morality ends where a gun begins.
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by blaster » Wed Oct 06, 2010 2:34 am
pharmxanthan wrote:Each person who attended a certain concert paid the same price for a ticket. How many people attended the concert?
A) If the ticket price had been $6 more and 100 fewer people had attended the concert, the total revenues from ticket sales would have been the same.
B) If the ticket price had been $6 less and 100 more people had attended the concert, the total revenues from ticket sales would have been $1200 less.

[spoiler]OA is C
But I am getting the same two variable equation from both A and B. [/spoiler]
They are same, but 1200$ less is changing the situation. i suppose you forgot about that number.
Join the discussion