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21 Feb 2018, 00:46
Kudos
Bookmarks
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
88% (01:53) correct
13%
(01:49)
wrong
based on 96
sessions
History
Date
Time
Result
Not Attempted Yet
A candy bar originally costs x cents per y ounces. If the size of the candy bar is reduced by 1 ounce and the price is increased by 10%, what is the new cost of the candy bar, expressed in cents per ounce?
A. (x - y)/10
B. 11(x - y)/10
C. 11x/(11y)
D. 11x/(10(y - 1))
E. 11x/(1 - y)
A. (x - y)/10
B. 11(x - y)/10
C. 11x/(11y)
D. 11x/(10(y - 1))
E. 11x/(1 - y)
21 Feb 2018, 03:53
Kudos
Bookmarks
Bunuel
x=10 y=100
x' = 11 y=99 x'/y' = 1/9
substitute x and y to get 1/9
D 11 x 10 / 10 ( 100-1) = 11x10/10 x 99 = 11/99 = 1/9
(D) imo
21 Feb 2018, 23:55
Kudos
Bookmarks
Bunuel
Lets take x as 10 and y as 2 it means for 2 ounces we need to pay 10 cent. so according to question now for 1 ounce we need to pay 11 cent so if we plug x and y equation in question only D will provide answer as 11.
IMO is also D.
