GMAT Question of the Day: Daily via email | Daily via Instagram New to GMAT Club? Watch this Video

 It is currently 06 Aug 2020, 20:35

### 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

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

# Protia rates all her first dates as either "duds" or "dudes". Her date

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 65831
Protia rates all her first dates as either "duds" or "dudes". Her date  [#permalink]

### Show Tags

03 May 2018, 01:03
00:00

Difficulty:

55% (hard)

Question Stats:

55% (01:58) correct 45% (01:13) wrong based on 56 sessions

### HideShow timer Statistics

Portia rates all her first dates as either "duds" or "dudes". Her date on Wednesday night was a dud.On the next night, she went on a date with someone else who was also a dud If the probability of her getting two duds in a row was 4/25,what is the probability that her next date will be a dude?

(A) 1/5
(B) 9/25
(C) 2/5
(D) 3/5
(E) 21/25

_________________
Intern
Joined: 27 Feb 2018
Posts: 7
Re: Protia rates all her first dates as either "duds" or "dudes". Her date  [#permalink]

### Show Tags

03 May 2018, 01:28
P(dud)+P(dude)=1. Since a guy can either be a dud or a dude.

Now there were 2 duds in a row. So probability of that is P(dud)*P(dud)= 4/25.

Hence P(dud)= 2/5. And from the first equation we have P(dude)=1-P(dud)= 3/5.

Ans: D (3/5)

Posted from my mobile device
Non-Human User
Joined: 09 Sep 2013
Posts: 15619
Re: Protia rates all her first dates as either "duds" or "dudes". Her date  [#permalink]

### Show Tags

11 Jul 2020, 06:14
Hello from the GMAT Club BumpBot!

Thanks to another GMAT 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.
_________________
Re: Protia rates all her first dates as either "duds" or "dudes". Her date   [#permalink] 11 Jul 2020, 06:14