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A
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:
67% (02:15) correct
33%
(02:37)
wrong
based on 556
sessions
History
Date
Time
Result
Not Attempted Yet
After the price of chocolates was discounted by 40%, a shopper can buy 4 more chocolates for $12 than he could buy at the original price. How many chocolates could be bought for $12 at the original price?
(A) 6
(B) 8
(C) 10
(D) 12
(E) 16
(A) 6
(B) 8
(C) 10
(D) 12
(E) 16
30 Oct 2012, 23:21
Kudos
Bookmarks
Price per chocolate = P, No. Of choclotaes = N
PN = 12
0.6P(N+4) = 12
P(N+4) = 20
4P = 8
P=2
N=6
ANSWER IS A
Kudos Please... If my post helped.
PN = 12
0.6P(N+4) = 12
P(N+4) = 20
4P = 8
P=2
N=6
ANSWER IS A
Kudos Please... If my post helped.
30 Oct 2012, 23:12
Kudos
Bookmarks
actleader
Say for $12 at the original price a shopper can buy \(x\) chocolates, then, the original price is \(\frac{12}{x}\) and discounted price is \(0.6*\frac{12}{x}\).
For $12 at the discounted price a shopper can buy \(\frac{12}{(\frac{0.6*12}{x})}=\frac{x}{0.6}=\frac{10x}{6}\) chocolates.
Given that \(x+4=\frac{10x}{6}\) --> \(x=6\).
Answer: A.
Hope it's clear.
