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12 Mar 2019, 03:22
Kudos
Bookmarks
C
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:
82% (01:40) correct
18%
(02:11)
wrong
based on 104
sessions
History
Date
Time
Result
Not Attempted Yet
Phillip has twice as many tropical fish as Jody. If Phillip gave Jody 10 of his tropical fish, he would have half as many as Jody. How many tropical fish do Phillip and Jody have together?
A. 10
B. 20
C. 30
D. 40
E. 60
A. 10
B. 20
C. 30
D. 40
E. 60
12 Mar 2019, 04:14
Kudos
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Bunuel
Tropical Fish (TP) = 2* Jody (J)
TP - 10 = (1/2)(J+10)
i.e. 2J - 10 = J/2 + 5
i.e. J = 10
and TP = 20
i.e. Total = 20+10 = 30
Answer: Option C
12 Mar 2019, 04:38
Kudos
Bookmarks
Bunuel
p = 2j
According to the question:
p - 10 = (j + 10) 1/2
2 ( 2j - 10) = j + 10
4j - 20 = j + 10
3j = 30
j = 10.
2j = 2*10 = 20
Total : j + p = j + 2j = 10 + 20 = 30.
C is the correct answer.
