Last visit was: 22 Apr 2026, 00:27 It is currently 22 Apr 2026, 00:27
Home
Messages
Tests
Schools
Events
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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 21 Apr 2026
Posts: 109,740
Own Kudos:
810,514
Given Kudos: 105,816
Products:
GMAT Club Tests Forum Quiz
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,740
Kudos: 810,514
A series of baseball games is scheduled to be played on Friday and Sat 13 Apr 2018, 03:02
Kudos
Add Kudos
Bookmarks
Bookmark this Post
00:00
Start Timer
Pause Timer
Resume Timer
Show Answer
Hide
Show
History
E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

Difficulty:

75% (hard)

Question Stats:

22% (01:06) correct 78% (01:35) wrong based on 27 sessions

History

Date
Time
Result
Not Attempted Yet
A series of baseball games is scheduled to be played on Friday and Saturday. If it rains on either day, the game scheduled for that day will be cancelled. If there is a 50% chance of rain on Friday and a 70% chance of rain on Saturday, what is the probability that the game will be cancelled on one of the two days?

A. 20%
B. 35%
C. 50%
D. 75%
E. 85%

Veritas ????????????

Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Problem Solving (PS) Forum
Still interested in this question? Check out the "Best Topics" block below for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
ShowHide Answer
Official Answer
E
User avatar
houston1980
User avatar
Joined: 30 May 2017
Last visit: 13 Dec 2025
Posts: 226
Own Kudos:
2,296
 [3]
Given Kudos: 2,274
Location: United States
Schools: HBS '22
GMAT 1: 690 Q50 V33
GRE 1: Q168 V164
GPA: 3.57
Schools: HBS '22
GMAT 1: 690 Q50 V33
GRE 1: Q168 V164
Posts: 226
Kudos: 2,296
 [3]
A series of baseball games is scheduled to be played on Friday and Sat 13 Apr 2018, 05:01
2
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
Bunuel
A series of baseball games is scheduled to be played on Friday and Saturday. If it rains on either day, the game scheduled for that day will be cancelled. If there is a 50% chance of rain on Friday and a 70% chance of rain on Saturday, what is the probability that the game will be cancelled on one of the two days?

A. 20%
B. 35%
C. 50%
D. 75%
E. 85%
Show more


The probability that the game will be cancelled on both days is 50% * 70% = 35%

The probability that the game will be played on both days is (100%-50%) * (100% -70%) = 50% * 30% = 15%

The probability that the game will be cancelled on one of the two days is 100% - (probability cancelled on both days+ Probability played on both days)

= 100 -(35%+15%) = 100 -50% = 50%

Hence option C = 50% is the answer.

Give me +1 Kudos if you like the explanation. Thanks.
User avatar
viv007
User avatar
Joined: 26 Sep 2017
Last visit: 03 Dec 2018
Posts: 81
Own Kudos:
35
Given Kudos: 84
Posts: 81
Kudos: 35
A series of baseball games is scheduled to be played on Friday and Sat 13 Apr 2018, 12:25
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Simply we can solve this..

Proba.of game played in friday * probab.of game not played in saturday + probabi.of game not played in friday * prob.of game played in saturday.
So
50/100*70/100 + 50/100*30/100 = 1/2 = 50%

Posted from my mobile device
User avatar
Hero8888
User avatar
Joined: 29 Dec 2017
Last visit: 14 Apr 2019
Posts: 299
Own Kudos:
348
Given Kudos: 273
Location: United States
Concentration: Marketing, Technology
GMAT 1: 630 Q44 V33
GMAT 2: 690 Q47 V37
GMAT 3: 710 Q50 V37
GPA: 3.25
WE:Marketing (Telecommunications)
GMAT 3: 710 Q50 V37
Posts: 299
Kudos: 348
A series of baseball games is scheduled to be played on Friday and Sat 13 Apr 2018, 13:21
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
on Friday and Saturday...what is the probability that the game will be cancelled on one of the two days?
Show more

I'm confused, since there is no condition such as "exactly on one of two days". I understand this problem as "cancelled on any of 2 days (including both)"

P(1)+P(2)+P(both) = 85%. Answer (E)

Please, help me out if I'm wrong.
User avatar
teaserbae
User avatar
Joined: 24 Mar 2018
Last visit: 07 Mar 2022
Posts: 188
Own Kudos:
49
Given Kudos: 288
Location: India
Schools: Carlson Foster '24 Haas '24 Kelley '24 Kellogg '24
GMAT 1: 680 Q50 V31
Schools: Carlson Foster '24 Haas '24 Kelley '24 Kellogg '24
GMAT 1: 680 Q50 V31
Posts: 188
Kudos: 49
A series of baseball games is scheduled to be played on Friday and Sat 15 Apr 2018, 01:18
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Hero8888
Bunuel
on Friday and Saturday...what is the probability that the game will be cancelled on one of the two days?

I'm confused, since there is no condition such as "exactly on one of two days". I understand this problem as "cancelled on any of 2 days (including both)"

P(1)+P(2)+P(both) = 85%. Answer (E)

Please, help me out if I'm wrong.
Show more

Since it is mentioned on one of the 2 days. It means exactly one day.
User avatar
ScottTargetTestPrep
User avatar
Target Test Prep Representative
Joined: 14 Oct 2015
Last visit: 21 Apr 2026
Posts: 22,276
Own Kudos:
26,528
Given Kudos: 302
Status:Founder & CEO
Affiliations: Target Test Prep
Location: United States (CA)
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 22,276
Kudos: 26,528
A series of baseball games is scheduled to be played on Friday and Sat 16 Apr 2018, 17:08
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
A series of baseball games is scheduled to be played on Friday and Saturday. If it rains on either day, the game scheduled for that day will be cancelled. If there is a 50% chance of rain on Friday and a 70% chance of rain on Saturday, what is the probability that the game will be cancelled on one of the two days?

A. 20%
B. 35%
C. 50%
D. 75%
E. 85%
Show more

We can use the equation:

1 = P(will be canceled on one of the two days) + P(will be cancelled on both days) + P(will not be cancelled on either day)

We have:

P( will not be canceled on either day) = P(will be played on both days) = 0.5 x 0.3 = 0.15

P(will be cancelled on both days) = 0.5 x 0.7 = 0.35

Thus,

P(will be cancelled on one of the two days) = 1 - 0.15 - 0.35 = 0.5

Answer: C

Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Problem Solving (PS) Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
Moderator:
Bunuel
Math Expert
109740 posts