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25 Jul 2018, 05:18
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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:
90% (00:59) correct
10%
(01:25)
wrong
based on 70
sessions
History
Date
Time
Result
Not Attempted Yet
If Carl is 3 times as old as Bea, how old is Bea?
(1) In nine years, Carl will be twice as old as Bea.
(2) Six years ago, Carl was 7 times as old as Bea.
(1) In nine years, Carl will be twice as old as Bea.
(2) Six years ago, Carl was 7 times as old as Bea.
25 Jul 2018, 05:24
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Ans: D
from the stem: c=3b
Stat 1) c+9 = 2(b+9)
so 3b+9=2b+18
b=9 (Suffi)
State 2) c-6=7(b-6)
so 3b-6 =7b-42
4b =36 ; b=9 (Suffi)
Ans D
from the stem: c=3b
Stat 1) c+9 = 2(b+9)
so 3b+9=2b+18
b=9 (Suffi)
State 2) c-6=7(b-6)
so 3b-6 =7b-42
4b =36 ; b=9 (Suffi)
Ans D
Bunuel
25 Jul 2018, 05:39
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Bunuel
Let age of Carl and Bea be C and B respectively.
Given C=3B
Now from 1: C+9= 2*(B+9)
We have two equations and two variables. We can derive the value. - Sufficient.
From 2: C-6 = 7*(B-6)
Again, We have two equations and two variables. We can derive the value. - Sufficient.
D is the answer.
