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blowice27
Joined: 16 Apr 2019
Last visit: 29 Jun 2021
Posts: 200
Given Kudos: 48
Location: India
Concentration: Marketing, Sustainability
Schools: Foster '22 (D) Olin '22 (A$) Rotman '23 (D) NUS '23 (I) Tepper '23 (A) Marshall'23 (I) Kelley '23 (A$) Kenan-Flagler'23 (A$)
GPA: 4
WE:Information Technology (Computer Software)
Products:
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
69% (02:14) correct
31%
(02:13)
wrong
based on 305
sessions
History
Date
Time
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Not Attempted Yet
At a certain airline, the cost of airfare to London has increased by 20 percent. If the cost of airfare to Paris has decreased by 20 percent, the cost of the reduced airfare to Paris is what percent of the cost of the increased airfare to London?
(1) The increased airfare to London is $80 less than the decreased airfare to Paris, and the original airfare to London was $600 less than the original airfare to Paris.
(2) The increased airfare to London is 3/4 of the original airfare to Paris.
(1) The increased airfare to London is $80 less than the decreased airfare to Paris, and the original airfare to London was $600 less than the original airfare to Paris.
(2) The increased airfare to London is 3/4 of the original airfare to Paris.
28 Aug 2019, 09:36
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Can someone please explain me how the answer is D?
28 Aug 2019, 10:57
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Anusinghal261998
At a certain airline, the cost of airfare to London has increased by 20 percent. If the cost of airfare to Paris has decreased by 20 percent, the cost of the reduced airfare to Paris is what percent of the cost of the increased airfare to London?
So we have percentages of increase and decrease in relation to the original price of the airfare. The question is asking: (Reduced airfare to Paris)/(Increased airfare to London).
(1) The increased airfare to London is $80 less than the decreased airfare to Paris, and the original airfare to London was $600 less than the original airfare to Paris.
Ol=Op-600
1.2Ol=op-80
Two equations with two variables, solve for one variable and plug into other equation.
SUFFICIENT
(2) The increased airfare to London is of the original airfare to Paris.
Use smart numbers.
and I believe that this statement is missing a number, but the percent that it gives shouldn't matter as long as it links the two airfares which will allow us to set up an equation which results in a ratio.
