GRE Prep Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
GRE Math Challenge #26-Judy is now twice as old as Adam
[#permalink]
07 Sep 2014, 06:42
07 Sep 2014, 06:42
Expert Reply
1
Bookmarks
00:00
Question Stats:
90% (01:06) correct
9% (03:08) wrong based on 43 sessions
Hide Show timer Statistics
Judy is now twice as old as Adam, but 6 years ago, she was 5 times as old as he was. How old is Judy now?
A. 10
B. 16
C. 20
D. 24
E. 32
A. 10
B. 16
C. 20
D. 24
E. 32
Re: GRE Math Challenge #26-Judy is now twice as old as Adam
[#permalink]
16 Jan 2018, 01:17
16 Jan 2018, 01:17
J=2A.
J-6=5(A-6)
Substitute J=2A
2A-6=5A-30
30-6=5A-2A
24=3A or A=8
Present age of Judy is J=2A
That is J=2x8=16.
J-6=5(A-6)
Substitute J=2A
2A-6=5A-30
30-6=5A-2A
24=3A or A=8
Present age of Judy is J=2A
That is J=2x8=16.
