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GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2506
Given Kudos: 1055
GPA: 3.39
Roy is now 4 years older than Erik and half of that amount older than
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24 Sep 2022, 06:51
24 Sep 2022, 06:51
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Question Stats:
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Roy is now 4 years older than Erik and half of that amount older than Iris. If in 2 years, Roy will be twice as old as Erik, then in 2 years what would be Roy’s age multiplied by Iris’s age?
(a) 8
(b) 28
(c) 48
(d) 50
(e) 52
(a) 8
(b) 28
(c) 48
(d) 50
(e) 52
Re: Roy is now 4 years older than Erik and half of that amount older than
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28 Sep 2022, 07:02
28 Sep 2022, 07:02
Expert Reply
Roy is now 4 years older than Erik --> \(R=E+4\)
Roy is now ... half of that amount older than Iris --> \(R=I+\frac{4}{2}=I+2\) (half of the amount of 4)
In 2 years, Roy will be twice as old as Erik --> \(R+2=2(E+2)\) (in 2 years for both Roy and Eric)
Then in 2 years what would be Roy’s age multiplied by Iris’s age --> \((R+2)(I+2)=?\)
Solving: \(R=6\) and \(I=4\) --> \((R+2)(I+2)=48\)
Answer: C.
Roy is now ... half of that amount older than Iris --> \(R=I+\frac{4}{2}=I+2\) (half of the amount of 4)
In 2 years, Roy will be twice as old as Erik --> \(R+2=2(E+2)\) (in 2 years for both Roy and Eric)
Then in 2 years what would be Roy’s age multiplied by Iris’s age --> \((R+2)(I+2)=?\)
Solving: \(R=6\) and \(I=4\) --> \((R+2)(I+2)=48\)
Answer: C.
gmatclubot
Re: Roy is now 4 years older than Erik and half of that amount older than [#permalink]
28 Sep 2022, 07:02
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