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18 Dec 2018, 00:04
Kudos
Bookmarks
E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
88% (00:58) correct
13%
(01:47)
wrong
based on 36
sessions
History
Date
Time
Result
Not Attempted Yet
Husain and Dino had an average (arithmetic mean) of $20 each. Dino then won a cash prize, which increased the average amount of money they had to $80. If no other changes occurred, how many dollars did Dino win?
A. 40
B. 60
C. 80
D. 100
E. 120
A. 40
B. 60
C. 80
D. 100
E. 120
18 Dec 2018, 03:47
Kudos
Bookmarks
Bunuel
Nice question.
Total amount Husain and Dino had before wining the cash prize = 20 *2 = 40.
After wining the cash prize AVERAGE becomes 80.
Total amount after wining cash prize = 80*2 = 160.
Value of the cash prize = 160 - 40 = 120.
E is the best answer.
