GRE Prep Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
List L: 2, x, y List M: 1, 2, 3, x, y 14. If the average (ar
[#permalink]
22 Nov 2017, 12:13
22 Nov 2017, 12:13
Expert Reply
00:00
Question Stats:
95% (00:59) correct
5% (01:06) wrong based on 40 sessions
Hide Show timer Statistics
List L: 2, x, y
List M: 1, 2, 3, x, y .
If the average (arithmetic mean) of the 3 numbers in list L is \(\frac{10}{3}\), what is the average of the 5 numbers in list M ?
Give your answer as a fraction.
List M: 1, 2, 3, x, y .
If the average (arithmetic mean) of the 3 numbers in list L is \(\frac{10}{3}\), what is the average of the 5 numbers in list M ?
Give your answer as a fraction.
Show: :: OA
14/5
Re: List L: 2, x, y List M: 1, 2, 3, x, y 14. If the average (ar
[#permalink]
22 Nov 2017, 12:27
22 Nov 2017, 12:27
1
Expert Reply
Explanation
List L is = to \(\frac{2+x+y}{3}=\frac{10}{3}\). After cross multiply we do have x+y=8
List M is = to \(\frac{1+2+3+8}{5}\) (because we do already know that x+y=8). Indeed, \(\frac{14}{5}\)
List L is = to \(\frac{2+x+y}{3}=\frac{10}{3}\). After cross multiply we do have x+y=8
List M is = to \(\frac{1+2+3+8}{5}\) (because we do already know that x+y=8). Indeed, \(\frac{14}{5}\)
Re: List L: 2, x, y List M: 1, 2, 3, x, y 14. If the average (ar
[#permalink]
24 Feb 2022, 09:41
24 Feb 2022, 09:41
Hello from the GRE Prep Club BumpBot!
Thanks to another GRE Prep 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.
Thanks to another GRE Prep 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.
