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10 Dec 2018, 00:16
Kudos
Bookmarks
E
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:
71% (01:00) correct
29%
(01:05)
wrong
based on 50
sessions
History
Date
Time
Result
Not Attempted Yet
Lyle bought used CDs at a store where all the CDs cost either $8 or $12. If Lyle bought an equal number of CDs at each price, and he spent a total of $200, what was the total number of CDs that Lyle bought?
A. 10
B. 15
C. 16
D. 18
E. 20
A. 10
B. 15
C. 16
D. 18
E. 20
Bunuel
Back solve the question. start with D or E.
E) 20
8*10 + 12 *10 = 200
A is our answer.
10 Dec 2018, 00:20
Kudos
Bookmarks
Lyle has bought an equal number of CDs at each price is the crux. Let this be x.
So 8x + 12x = 200
20x = 200
x = 10
Hence Option (A) does it.
BEst,
GLadi
So 8x + 12x = 200
20x = 200
x = 10
Hence Option (A) does it.
BEst,
GLadi
Bunuel
