It is currently 28 May 2020, 04:52
My Tests

Close

GMAT 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

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

On average, a sharpshooter hits the target once every 3 shot

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
1 KUDOS received
Founder
Founder
User avatar
Joined: 18 Apr 2015
Posts: 11158
Followers: 237

Kudos [?]: 2785 [1] , given: 10592

CAT Tests
On average, a sharpshooter hits the target once every 3 shot [#permalink] New post 14 May 2019, 00:24
1
This post received
KUDOS
Expert's post
00:00

Question Stats:

18% (00:52) correct 81% (00:43) wrong based on 11 sessions
On average, a sharpshooter hits the target once every 3 shots. What is the probability that he will hit the target in 4 shots?

(A) \(1\)

(B) \(\frac{1}{81}\)

(C) \(\frac{1}{3}\)

(D) \(\frac{65}{81}\)

(E) \(\frac{71}{81}\)
[Reveal] Spoiler: OA

_________________

Need Practice? 20 Free GRE Quant Tests available for free with 20 Kudos
GRE Prep Club Members of the Month: Each member of the month will get three months free access of GRE Prep Club tests.

Manager
Manager
Joined: 22 Aug 2019
Posts: 72
Followers: 1

Kudos [?]: 46 [0], given: 11

Re: On average, a sharpshooter hits the target once every 3 shot [#permalink] New post 22 Aug 2019, 19:30
Carcass wrote:
On average, a sharpshooter hits the target once every 3 shots. What is the probability that he will hit the target in 4 shots?

(A) \(1\)

(B) \(\frac{1}{81}\)

(C) \(\frac{1}{3}\)

(D) \(\frac{65}{81}\)

(E) \(\frac{71}{81}\)


Calculate the probability he will miss all 4 shots!

(2/3)^4 = 16/81 is the chance of missing all the shots.

So 1 - 16/81 is the change that hits it at least once.
Evaluates to 65/81

Answer is D.
Re: On average, a sharpshooter hits the target once every 3 shot   [#permalink] 22 Aug 2019, 19:30
    Similar topics Author Replies Last post
Similar
Topics:
New posts Experts publish their posts in the topic Arithmetic and Fractions AnimeshPaul10 1 18 May 2017, 02:15
Display posts from previous: Sort by

On average, a sharpshooter hits the target once every 3 shot

  Question banks Downloads My Bookmarks Reviews Important topics  


GRE Prep Club Forum Home| About| Terms and Conditions and Privacy Policy| GRE Prep Club Rules| Contact

Powered by phpBB © phpBB Group

Kindly note that the GRE® test is a registered trademark of the Educational Testing Service®, and this site has neither been reviewed nor endorsed by ETS®.