GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 06 Dec 2019, 04:01

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.

Close

Request Expert Reply

Confirm Cancel

Box A and B each contain five cards numbered 1, 2, 3, 4 and 5. If one

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Find Similar Topics 
BSchool Forum Moderator
avatar
V
Joined: 29 Jan 2015
Posts: 1464
Location: India
WE: General Management (Non-Profit and Government)
GMAT ToolKit User Premium Member Reviews Badge
Box A and B each contain five cards numbered 1, 2, 3, 4 and 5. If one  [#permalink]

Show Tags

New post 18 Nov 2019, 07:50
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

59% (01:29) correct 41% (02:05) wrong based on 44 sessions

HideShow timer Statistics

Box A and B each contain five cards numbered 1, 2, 3, 4 and 5. If one card is to be taken out from box A and B, what is the probability the product of the numbers in two cards will be less than 4?

(A) 2/25

(B) 4/25

(C) 1/5

(D) 1/4

(E) 2/5
Manager
Manager
avatar
B
Joined: 24 Sep 2019
Posts: 74
Box A and B each contain five cards numbered 1, 2, 3, 4 and 5. If one  [#permalink]

Show Tags

New post 18 Nov 2019, 12:13
1
To find the answer, find the number of combinations that will result in a product less than 4. in this case, opposites will count as separate draws, ie, 1*2 and 2*1 are 2 separate combinations.
1*1, 1*2, 1*3,2*1, and 3*1
there are 5 different combinations that qualify. to find probability, divide by the total number of combinations possible (5*5)=25
5/25=1/5
Ans=C
Intern
Intern
avatar
B
Joined: 19 Mar 2019
Posts: 6
Re: Box A and B each contain five cards numbered 1, 2, 3, 4 and 5. If one  [#permalink]

Show Tags

New post 20 Nov 2019, 08:52
Refer Attachment
Set A has 1 2 3 4 5
Set B has 1 2 3 4 5

So total 5x5=25 combinations

Now for product of any 2 to be less than 4
Set A becomes 1 2 3 4 5
Similarly Set B becomes 1 2 3 4 5

Combinations possible from the remaining
1x1 1x2 1x3 2x1 and 3x1

Other combinations does not meet the requirements

So the answer is 5/25 = 1/5
Attachments

IMG_20191120_211555.jpg
IMG_20191120_211555.jpg [ 1015.5 KiB | Viewed 256 times ]

Target Test Prep Representative
User avatar
V
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 8619
Location: United States (CA)
Re: Box A and B each contain five cards numbered 1, 2, 3, 4 and 5. If one  [#permalink]

Show Tags

New post 22 Nov 2019, 12:46
rohan2345 wrote:
Box A and B each contain five cards numbered 1, 2, 3, 4 and 5. If one card is to be taken out from box A and B, what is the probability the product of the numbers in two cards will be less than 4?

(A) 2/25

(B) 4/25

(C) 1/5

(D) 1/4

(E) 2/5


The options for products less than 4 are:

1,1

1,2 or 2,1

1,3 or 3,1

Since we have a total of 5 x 5 = 25 possible products the probability is 5/25 = 1/5.

Answer: C
_________________

Scott Woodbury-Stewart

Founder and CEO

Scott@TargetTestPrep.com
TTP - Target Test Prep Logo
122 Reviews

5-star rated online GMAT quant
self study course

See why Target Test Prep is the top rated GMAT quant course on GMAT Club. Read Our Reviews

If you find one of my posts helpful, please take a moment to click on the "Kudos" button.

GMAT Club Bot
Re: Box A and B each contain five cards numbered 1, 2, 3, 4 and 5. If one   [#permalink] 22 Nov 2019, 12:46
Display posts from previous: Sort by

Box A and B each contain five cards numbered 1, 2, 3, 4 and 5. If one

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  





Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne