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Gheri is n years old. Carl is 6 years younger than Gheri and 2 years

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Gheri is n years old. Carl is 6 years younger than Gheri and 2 years  [#permalink]

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New post 07 Jan 2019, 09:39
1
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A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

67% (01:23) correct 33% (01:06) wrong based on 21 sessions

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Re: Gheri is n years old. Carl is 6 years younger than Gheri and 2 years  [#permalink]

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New post 07 Jan 2019, 09:44
Gheri = n

Carl= n-6

Jeans= n-8
Sum = 3n-14

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Re: Gheri is n years old. Carl is 6 years younger than Gheri and 2 years  [#permalink]

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New post 07 Jan 2019, 09:57
Bunuel wrote:
Gheri is n years old. Carl is 6 years younger than Gheri and 2 years older than Jean. What is the sum of the ages of all three?

A. 3n + 16
B. 3n + 4
C. 3n − 4
D. 3n − 8
E. 3n − 14


g=n
c=n-6
c=J+2
j=n-8

n+n-6+n-8
3n-14
IMO E
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Re: Gheri is n years old. Carl is 6 years younger than Gheri and 2 years  [#permalink]

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New post 07 Jan 2019, 10:30
Bunuel wrote:
Gheri is n years old. Carl is 6 years younger than Gheri and 2 years older than Jean. What is the sum of the ages of all three?

A. 3n + 16
B. 3n + 4
C. 3n − 4
D. 3n − 8
E. 3n − 14


Gheri - n yrs
Carl - n-6
Jean - n - 8

Hence sum of their ages - 3n - 14 . E)
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Re: Gheri is n years old. Carl is 6 years younger than Gheri and 2 years  [#permalink]

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New post 07 Jan 2019, 10:44
Bunuel wrote:
Gheri is n years old. Carl is 6 years younger than Gheri and 2 years older than Jean. What is the sum of the ages of all three?

A. 3n + 16
B. 3n + 4
C. 3n − 4
D. 3n − 8
E. 3n − 14


Its Given, Gheri = n years old
Carl = n - 6

Carl = J +2
=> J = Carl-2
=> J = n-8

Sum of all three ages = n + n-6 + n-8 = 3n -14

Correct Answer E.
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Re: Gheri is n years old. Carl is 6 years younger than Gheri and 2 years  [#permalink]

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New post 07 Jan 2019, 18:02
1
Bunuel wrote:
Gheri is n years old. Carl is 6 years younger than Gheri and 2 years older than Jean. What is the sum of the ages of all three?

A. 3n + 16
B. 3n + 4
C. 3n − 4
D. 3n − 8
E. 3n − 14


Suppose ,

n = 10 years.

Gheri = 10

carl = 4

jean = 2

Total age = 10 + 4 + 2 = 16.

Option E) 3n -14 = 3*10 - 14 = 16.

It's a nice idea to assign a number if both question steam and answer choices include variable.
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Re: Gheri is n years old. Carl is 6 years younger than Gheri and 2 years   [#permalink] 07 Jan 2019, 18:02
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