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Jim is now 15 years older than Ted. 18 years ago, Jim was twice Ted’s
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20 Oct 2021, 09:27
20 Oct 2021, 09:27
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84% (01:33) correct
16% (01:37) wrong based on 25 sessions
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Jim is now 15 years older than Ted. 18 years ago, Jim was twice Ted’s age. Jim is now how many years old?
33
35
47
48
51
33
35
47
48
51
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Jim is now 15 years older than Ted. 18 years ago, Jim was twice Ted’s
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20 Oct 2021, 10:01
20 Oct 2021, 10:01
1
Carcass wrote:
Jim is now 15 years older than Ted. 18 years ago, Jim was twice Ted’s age. Jim is now how many years old?
A) 33
B) 35
C) 47
D) 48
E) 51
A) 33
B) 35
C) 47
D) 48
E) 51
Let J = Jim's PRESENT age
So, J - 15 = Ted's PRESENT age (since Ted is 15 years younger than Jim)
We can also write the following:
J - 18 = Jim's age 18 YEARS AGO
(J - 15) - 18 = Ted's age 18 YEARS AGO
Simplify to get: J - 33 = Ted's age 18 YEARS AGO
18 years ago, Jim was twice Ted’s age.
We can write: (Jim's age 18 YEARS AGO) = 2(Ted's age 18 YEARS AGO)
Substitute to get: J - 18 = 2(J - 33)
Expand: J - 18 = 2J - 66
Subtract J from both sides: -18 = J - 66
Add 66 to both sides to get: 48 = J
Since J = Jim's PRESENT age, the correct answer here is D
Re: Jim is now 15 years older than Ted. 18 years ago, Jim was twice Teds
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04 Oct 2023, 22:50
04 Oct 2023, 22:50
Hello from the GRE Prep Club BumpBot!
Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
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Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
