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Rory is 3 years older than Joe, and Andrea is 2 years older than Rory.

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Math Expert
Joined: 02 Sep 2009
Posts: 51220
Rory is 3 years older than Joe, and Andrea is 2 years older than Rory.  [#permalink]

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07 Jul 2018, 08:40
00:00

Difficulty:

5% (low)

Question Stats:

100% (00:39) correct 0% (00:00) wrong based on 31 sessions

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Rory is 3 years older than Joe, and Andrea is 2 years older than Rory. If Andrea is 24 years old, what is the median age of these three people?

A. 19
B. 20
C. 21
D. 22
E. 24

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Director
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Joined: 01 Oct 2017
Posts: 931
WE: Supply Chain Management (Energy and Utilities)
Re: Rory is 3 years older than Joe, and Andrea is 2 years older than Rory.  [#permalink]

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07 Jul 2018, 08:55
Bunuel wrote:
Rory is 3 years older than Joe, and Andrea is 2 years older than Rory. If Andrea is 24 years old, what is the median age of these three people?

A. 19
B. 20
C. 21
D. 22
E. 24

Let the ages of Rory, Joy, and Andrea be R,J, and A years respectively.

Given, R=J+3, A=R+2=24

So, R=24-2=22.
So,J=R-3=22-3=19

So median of ages {19,22,24} is 22.

Ans. (D)
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PKN

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Rory is 3 years older than Joe, and Andrea is 2 years older than Rory.  [#permalink]

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07 Jul 2018, 10:14
Bunuel wrote:
Rory is 3 years older than Joe, and Andrea is 2 years older than Rory. If Andrea is 24 years old, what is the median age of these three people?

A. 19
B. 20
C. 21
D. 22
E. 24

$$A = 24$$

Quote:
Andrea is 2 years older than Rory

$$R = 22$$

Quote:
Rory is 3 years older than Joe

$$J = 19$$

So, The median age is 22, Answer must be (D)
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Abhishek....

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Director
Joined: 14 Dec 2017
Posts: 518
Location: India
Re: Rory is 3 years older than Joe, and Andrea is 2 years older than Rory.  [#permalink]

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07 Jul 2018, 11:02
R = J + 3

A = R + 2

A = 24

R = 24 - 2 = 22

J = 22 - 3 = 19

Median age = 22

Thanks,
GyM
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Re: Rory is 3 years older than Joe, and Andrea is 2 years older than Rory. &nbs [#permalink] 07 Jul 2018, 11:02
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