Venn Diagrams and Sets 07

Try this on your own...
113 college students were surveyed and it was found out that all of them have visited at least one of the following three cities: Austin (TX), Boston (MA), and Chicago (IL).

66 of the students visited Austin.
52 of the students visited Boston.
76 of the students visited Chicago.
19 of the students visited Austin and Boston.
28 of the students visited Boston and Chicago.
42 of the students visited Austin and Chicago.
40 of the students visited exactly one of the following three cities: Austin, Boston, and Chicago.

a. How many students visited only Austin?
b. How many students visited only Boston?
c. How many students visited only Chicago?
d. How many students visited both Austin and Boston, but not Chicago?
e. How many students visited both Boston and Chicago, but not Austin?
f. How many students visited both Austin and Chicago, but not Boston?
g. How many students visited all of the following three cities: Austin, Boston, and Chicago?
Ans: a. 13, b. 13, c. 14, d. 11, e. 20, f. 34, g. 8

[@user-lu8we6gh3j]

My God! This one of the best i have watched.. Old but GOLD!!!

[@boykyber2667]

I got the answers right. Who is here in the month of march? Thanks professor for making this easy for us to learn fast

[@anyiko3009]

This lesson hit different, it has help me to solve the psychology question which defeated my Lecturer..
Thanks you so much DOCTOR

[@danielacheampong7992]

Thanks Doc, you are just too awesome I understood everything

[@aladagoziniah1026]

This lessons has helped me a lot especially during breaks from school

[@bontleseko]

The most useful out of all I've watched, thank you

[@vevina1234]

Thank you for explaining the concepts so well :)

[@user-uf4hs9cw3h]

Wow. Such a good explanation. Thank you sir

[@emilybolster4189]

why do you use the 3x for dividing ?

[@Coolblueocean2001]

Glad to hear that!

[@subhashiwelagedara6624]

Thank you so much sir. I have to face a competitive exam so it is very helpful.

[@fridahneno1085]

Same here

[@josephfederico6362]

Im going to start a finite math course in January...u make it seem Soo simple thank u bro

[@Coolblueocean2001]

I appreciate your feedback, bro! Keep up the good work.

[@israelayoade]

What if it is not 0 outside the 3 circles. Say 12 is not equal to cab?

[@Hali_Jobe]

This is so helpful ❤

[@grace5850]

You the best Sir this helped me a lot

[@manasi5373]

Thank you so much sir.
It was very helpful for me.
You explained perfectly and I understood completely 😊

[@Coolblueocean2001]

Thank you so much,.

[@hassanmike4277]

Frankly this video lessons have helped me alot especially in classroom lessons which i never understood the teacher concepts

[@Coolblueocean2001]

I appreciate it! I am glad the video helped...

[@Coolblueocean2001]

What grade level do you go to?

[@BenroyGurua]

Are there any Formula which we are going to use and calculate this or there are no Formaula

[@isamohammedharuna3047]

How is it those the x change to positive while they all negative there. With regards to only.

[@wasikesalim8051]

I like it.nice explanation sir.

[@Niteshsharmabca]

did not use in 3 subject ...how to use this qstn

[@wasikesalim8051]

I like it nice explanation sir.

[@IODell]

Thank you for posting the video. At 9:01 I'm not understanding how you determined zero from reading the question.

[@Coolblueocean2001]

Since the questions says all of the students went to one of the three cities, so they all belong to one of the three circles/cities (A, B and C). Therefore, no one is outside the three circles/cities.

[@fridahchanda8736]

What happens when the number has a REMENDER?

[@flexgraphix69]

What about if the question said 7 went on at least one of the college visits all

[@margiecervantes8932]

How do you get 3x in adding 14

[@elicanakanyika4976]

thank u very much for the wonderful vedio really helped with my exams

[@Coolblueocean2001]

I am glad to hear that!

[@chineduubeh6362]

It was a great help. Thank you

[@Coolblueocean2001]

Glad to hear.

[@anyiko3009]

And Dr. Kindly can I send you a question to help solving it...?

[@erwinfitrianto7527]

Thank you for video

[@saumyashruti8553]

Helps a lot

[@dancewiththatkidda1776]

thanks sir...you are the best

[@jackngigi9970]

Well illustrated

[@shgamer3185]

How did you know that if some students visited Austin and Boston then they could go to chicago and vice vera i didn't understand that other than that thank you

[@mrsmwanikisusan4460]

Just what I needed

[@user-Ali1272]

I am from Pakistan and like to listen your lecture

[@Coolblueocean2001]

I appreciate that!

[@MARCEL-dc1jb]

Hala nasaag ko dari, hi classmates in advance.

[@KingZeesh]

Thank you

[@parisirene]

I’m taking this class now and I am struggling so bad 😩

[@CLIF5758]

I'm taking GMAT exams and the piece is very good

[@arahanharpal]

Thanks sir it helped me

[@Coolblueocean2001]

I am glad to hear tha.

[@gracetelmo8928]

What if there are at least who goes to one cities

[@richardfernandes893]

Good sir!

[@mathenthusiast-ne1cw]

Hi sir, i guess you can use the last statement Aonly+Bonly+Conly =38 after writing x, 19-x, 28-x and 31-x. Note that all sectors add up to 100, thus, 38+x+19-x+28-x+31-x=100, then solve for the value of x. X=8

[@Coolblueocean2001]

yes, you can. Good!

[@husen100]

thank u sir I learnt very much by u ...your .teaching manner is good ...god bless u sir

[@Coolblueocean2001]

I am glad it helped!

[@gerarddonovan4145]

Excellent

[@njebegiven1538]

Thanks

[@katendesimon748]

How to find (u)

[@vidaagbesi11]

Great job sir

[@Coolblueocean2001]

Thank you!

[@shiudifonyalotty7839]

its complicated ..thanx anyway

[@JusKoranteng-gk5lw]

Very good

[@chrisd.9319]

Thanks mn

[@kanyesigyehope6711]

Wow thanx a lot

[@Coolblueocean2001]

I am glad it helped...

[@anyanwukingsleyc.2100]

how is 14+3x =38

[@jumachansa7597]

Nice

[@mubarakadam1096]

May god help u and ur family by showing u the way of islam...man u really help me 😭😭😭

[@emilynyarenchi3753]

Thanks sir

[@Coolblueocean2001]

Glad you liked it...

[@mosopetobalesi5334]

Well explained 👍

[@Coolblueocean2001]

Thank you!

[@jaxcronla4365]

This help me alot then my math teacher.

[@Coolblueocean2001]

Thank you! I am glad to hear that.

[@RANJANKUMAR-ej5tb]

Mind -blowing concept hai sir

[@Coolblueocean2001]

Dhanyevaad!

[@rosellewrites3371]

Thank you!

[@Coolblueocean2001]

You are welcome!

[@youngboylexis2763]

🙏🏾❤️🙏🏾❤️🔥

[@RaushanKumar-ny1fo]

aap Indian hai yaa englandian
bhai

[@Coolblueocean2001]

Main Bangladeshi American hoon. I do love India as well.

[@kenwuldkaumba-nw5yw]

Umakwana

[@erwinfitrianto7527]

Thank you