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Roy is now 4 years older than Erik and half of that amount [#permalink]

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14 Feb 2010, 01:56

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Difficulty:

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Question Stats:

68% (03:27) correct
32% (02:31) wrong based on 192 sessions

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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?

"Don't be afraid of the space between your dreams and reality. If you can dream it, you can make it so." Target=780 http://challengemba.blogspot.com Kudos??

Hmm! would you please! explain a bit how did u get 2nd & 3rd equations? as if I take "If in 2 years, Roy will be twice as old as Erik" the n it means that r+2=2e -- 2nd

and I didn't get these words "and half of that amount older than Iris" plzz! explain it.

Any help would be highly appreciated. _________________

"Don't be afraid of the space between your dreams and reality. If you can dream it, you can make it so." Target=780 http://challengemba.blogspot.com Kudos??

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

Hmm! would you please! explain a bit how did u get 2nd & 3rd equations? as if I take "If in 2 years, Roy will be twice as old as Erik" the n it means that r+2=2e -- 2nd

and I didn't get these words "and half of that amount older than Iris" plzz! explain it.

Any help would be highly appreciated.

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 \(I=4\) --> \((R+2)(I+2)=48\)

Hmm! would you please! explain a bit how did u get 2nd & 3rd equations? as if I take "If in 2 years, Roy will be twice as old as Erik" the n it means that r+2=2e -- 2nd

and I didn't get these words "and half of that amount older than Iris" plzz! explain it.

Any help would be highly appreciated.

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 \(I=4\) --> \((R+2)(I+2)=48\)

Thanks for explanation, Actually i couldn't get the equation with I otherwise I had solved other equations instead of this one

\(R=I+\frac{4}{2}=I+2\) (half of the amount of 4)

looks like have to work on Word Problems. thanks again and Kudos couldn't get this part (half of the amount of 4) _________________

"Don't be afraid of the space between your dreams and reality. If you can dream it, you can make it so." Target=780 http://challengemba.blogspot.com Kudos??

Re: Roy is now 4 years older than Erik and half of that amount [#permalink]

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10 Aug 2014, 19:26

Hello from the GMAT Club BumpBot!

Thanks to another GMAT 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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Re: Roy is now 4 years older than Erik and half of that amount [#permalink]

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21 Nov 2015, 22:18

Hello from the GMAT Club BumpBot!

Thanks to another GMAT 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. _________________

Re: Roy is now 4 years older than Erik and half of that amount [#permalink]

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23 Nov 2015, 02:55

Expert's post

AtifS wrote:

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

Since we have been given everything in terms of the of Erik, Let us assume the age of Erik to be E And, the term " half of that amount" refers to the value 4.

Attachment:

Erik age.JPG [ 13.97 KiB | Viewed 2145 times ]

E + 6 = 2E + 4 E = 2 Therefore, (Roy's age)* (Iris's age) = 8*6 = 48 Option C _________________

Re: Roy is now 4 years older than Erik and half of that amount [#permalink]

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18 Feb 2016, 11:58

Folks

Please help me understand;

interpreted the Q stem incorrectly

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

'half of that amount' -- I interpreted as r= i+ 1/2(e+4)

How do i know half of that amount means - half of '4 years older'

gmatclubot

Re: Roy is now 4 years older than Erik and half of that amount
[#permalink]
18 Feb 2016, 11:58

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