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Meg is twice as old as Rolf, but three years ago, she was two years ol

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Math Expert
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Meg is twice as old as Rolf, but three years ago, she was two years ol  [#permalink]

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New post 03 Jan 2019, 13:30
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

63% (00:53) correct 37% (01:20) wrong based on 34 sessions

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Re: Meg is twice as old as Rolf, but three years ago, she was two years ol  [#permalink]

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New post 03 Jan 2019, 14:24
Let Meg's age be m and Rolf be r

Now: m=2r ------------------- (1)
3 years ago: m - 3 = r + 2 -- (2) ====> m = r + 5 ---- (3)

Solving (1) and (3) ====> r = 5 (Answer choice D)




Bunuel wrote:
Meg is twice as old as Rolf, but three years ago, she was two years older than Rolf is now. How old is Rolf now?

A. 2
B. 3
C. 4
D. 5
E. 6
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Re: Meg is twice as old as Rolf, but three years ago, she was two years ol  [#permalink]

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New post 03 Jan 2019, 21:17
M = 2R ---(1)

M - 3 = R + 2
M = R + 5 ----------(2)

R + 5 = 2R
R = 5

OPTION: D
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Re: Meg is twice as old as Rolf, but three years ago, she was two years ol   [#permalink] 03 Jan 2019, 21:17
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