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15 Aug 2016, 03:59
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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
75% (01:31) correct
25%
(01:30)
wrong
based on 379
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Abby, Brandon, Cedric, and Deirdre are planning to attend a concert. If their friend Kim also goes with them, they will get a group discount on their tickets. If the total price of the tickets with the group discount is the same as the total price of the tickets without the group discount, how much is the discount?
A. 5%
B. 10%
C. 20%
D. 25%
E. 33%
A. 5%
B. 10%
C. 20%
D. 25%
E. 33%
Updated on: 05 Apr 2020, 10:07
Originally posted by BrentGMATPrepNow on 15 Aug 2016, 08:11.
Last edited by BrentGMATPrepNow on 05 Apr 2020, 10:07, edited 1 time in total.
Last edited by BrentGMATPrepNow on 05 Apr 2020, 10:07, edited 1 time in total.
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Bunuel
One approach is to ASSIGN SOME "NICE" VALUES
Let's say the price per ticket = $1
So, the TOTAL cost (i.e., without a discount) for Abby, Brandon, Cedric, and Deirdre will be $4
The total price of the tickets with the group discount is the same as the total price of the tickets without the group discount
When Kim comes too, the TOTAL discounted price will be $4
Of course, if tickets are $1 each, then the TOTAL cost (without discount) for the five people SHOULD be $5
So, what's the discount (expressed as a percent)?
The discount = (100)(5 - 4)/5
= 100/5
= 20%
Answer:
General Discussion
15 Aug 2016, 04:24
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Bunuel
Let A,B,C and D individual tickets be X and total tickets is 4X..
Now with Kelly they get a discount , total tickets here is 5x.
We are told that group discount is same as total price without discount..
When we need to solve 5X till we get 4X..
Take options..5X - 5%(5X) = 5x - (0.05)(5X) = 5x - 0.25X = 4.75X...not same as 4X..
(B) 5X - 10% of 5x => 5x - (0.1)(5x) = 4.5X, which is again not equal to 4x. So, this is not the correct option.
(C) 5X - 20% of 5x => 5x - (0.2)(5x) = 4X, this is same as 4X...no need to do other options..
IMO option C is correct answer...
OA please...will correct if I missed anything..
