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Venn diagrams can be used to solve word problems involving union and intersection of sets

 

1. A group of 25 high school students were asked whether they use either Facebook or Twitter or both,Fifeen of these students use facebook and twelve use fifteen

A.How many use facebook only?

B. How many use twitter pn;y?

C. How many use both social networking sites?

 

2. A group of 50 students went in a tour in Palawan province,24 joined the trip to Coron,18 went to Tubbatona 15 Reef,20visited El Nido,12 made a trip to Coron and Tubbatona Reef,15 saw Tubbatano Reef And El nido 11 made a trip to coron and el nido and 10 saw the three tourist spots.

A.How many of the students went to Coron only?

B. how many of the students went to Tubbatona?

C. How many joined El nido trip only

D. how many did not go to any of the tourist spots

 

Please help me guys

 Jun 20, 2019
 #1
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A lot of typos in BOTH of these Q's !    cheeky      Can you correct them?

 Jun 20, 2019
 #6
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He's rigth and 15 + 12 exceeds the limitation of 25 students, Are you sure you typed out the question accordingly?

HiylinLink  Jun 20, 2019
 #2
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I sugest you use a ven diagram for the first problem 

 

Label the left side facebook and the right side twitter and the middle for both  Tell me what you get after this for questions A B and C

 

 Jun 20, 2019
 #3
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three circles

Guest Jun 20, 2019
 #4
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Do you know how to use a ven diagram? If not reread the lesson  from your text book.

HiylinLink  Jun 20, 2019
edited by HiylinLink  Jun 20, 2019
 #5
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Im in 4th grade but the teacher give me this

Guest Jun 20, 2019
 #7
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I learned how to use a venn digram in second grade... It's a simple tool reread what you've got and come back to me once you have learned how to use it...

HiylinLink  Jun 20, 2019
 #8
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You will have to finish your grammer there are many types of venn diagrams like this! 

 

Nickolas  Jun 20, 2019
 #9
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The left is for students who only use Facebook the Middle  is for students who use both twitter and facebook the right is for students who only use twitter Got it tell me what you get for problem 1

 

cheekycheekycheeky

Nickolas  Jun 20, 2019
edited by Nickolas  Jun 20, 2019
 #10
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The no.2 please im girl I got the the no.1 please

Guest Jun 20, 2019
 #11
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Gender dosen't make a diffrence well how did you do number 2 or how did you attempt it and what is your trouble?

HiylinLink  Jun 20, 2019
edited by HiylinLink  Jun 20, 2019
 #12
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Sort them out with this

 

cheekycheekycheeky

Nickolas  Jun 20, 2019
 #13
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Im sorry

Guest Jun 20, 2019
 #14
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Thats fine 2 is tricky HiylinLink

 

There is alot of groups 

Nickolas  Jun 20, 2019
 #15
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Ok thank you so much

Guest Jun 20, 2019
 #16
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Try this tell me if this help you witht he second one... 

 

 

HiylinLink  Jun 20, 2019
 #17
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Problem 2 

A. 36  totall        Becuse first 24 students went to coron then 12 more is 36 students 

 

B. Well first 18 students went to Tubbatona then 12 more came to Tubbatona so 30 in totall visited Tubbatona

 

C. 11 made a trip to El nido Because look in the text (11 made a trip to coron and el nido )   and 20 visited only see (20visited El Nido)

 

D. so it says 10 seen the three tourist spots and there are 50 students so 50-10=40 so 40 didnt! 

 

Hope I did not take to long hope this helps to! 

 

cheekycheekycheeky

Nickolas  Jun 20, 2019
 #18
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I was teaching nickolas answer's aren't suppose to be handed out the response was facilating cheating.

HiylinLink  Jun 20, 2019
 #19
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It is a very confusing question HiylinLink the guest was struggling to figure out the answer it took me a few minutes to solve! 

 

cheekycheekycheeky

Nickolas  Jun 20, 2019
 #20
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We, teach to the point till we understand that the asker has understood the question.

HiylinLink  Jun 20, 2019
 #21
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Thank you so much!

Guest Jun 20, 2019
 #22
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Okay HiylinLink I think she got it from problem 1 

I would wait though guest Cphill a mod might have a better explanation! 

Nickolas  Jun 20, 2019
edited by Nickolas  Jun 20, 2019
 #23
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+1

1. A group of 25 high school students were asked whether they use either Facebook or Twitter or both,Fifeen of these students use facebook and twelve use Twitter

A.How many use facebook only?

B. How many use twitter pn;y?

C. How many use both social networking sites?

 

Those using Facebook + Those using Twitter  - Total Number of Students  = Number using both

 

15  + 12  - 25  =   2

 

Here is the Venn diagram :

 

 

Facebook only  = 13

Twitter only  = 10

Both  =  2

 

 

cool cool cool

 Jun 20, 2019
 #24
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Nice job did you like mine do you think it is right I belive so! 

 

cheekycheekycheeky

Nickolas  Jun 20, 2019

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