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12 Jun 2025, 00:30
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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:
65%
(hard)
Question Stats:
65% (02:34) correct
35%
(02:18)
wrong
based on 169
sessions
History
Date
Time
Result
Not Attempted Yet
A certain retailer decided to raise its prices by p%. When, as a result, its sales dropped by q%, the retailer found that its total revenue was unchanged. Which of the following correctly expresses q in terms of p?
A. p
B. 1/p
C. p/(1−p)
D. 100/(100+p)
E. 100p/(100+p)
Source: Veritas Prep
Gentle note to all experts and tutors: Please refrain from replying to this question until the Official Answer (OA) is revealed. Let students attempt to solve it first. You are all welcome to contribute posts after the OA is posted. Thank you all for your cooperation!
A. p
B. 1/p
C. p/(1−p)
D. 100/(100+p)
E. 100p/(100+p)
Source: Veritas Prep
Gentle note to all experts and tutors: Please refrain from replying to this question until the Official Answer (OA) is revealed. Let students attempt to solve it first. You are all welcome to contribute posts after the OA is posted. Thank you all for your cooperation!
12 Jun 2025, 01:02
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Let the price of the product be x
x(1+p/100)(1-q/100) = x
(100+p)(100-q) = 10000
10000 + 100p -100q-pq = 10000
100p = 100q+pq
q = 100p/(100+p)
x(1+p/100)(1-q/100) = x
(100+p)(100-q) = 10000
10000 + 100p -100q-pq = 10000
100p = 100q+pq
q = 100p/(100+p)
Bunuel
