saifoo.khan
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saifoo.khan
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mathslover
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Try to draw a venn diagram first

mathslover
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Can you do that Saif ?

mathslover
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dw:1365077901699:dw

saifoo.khan
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I have already drawn it. Still unable to do it. :s

mathslover
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No problem. You would do it now.

saifoo.khan
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Only once you help me then i'll be able to do it.

mathslover
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It is given that 12 members are of athletics and drama both .
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saifoo.khan
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dw:1365078114787:dwNow tell me that to do?!

saifoo.khan
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what*

mathslover
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Check that again! I think there is some fault.

saifoo.khan
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Where? In the question?

mathslover
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In the diagram. Drama and athletics = 12 members. and Drama and basket =19 . Have you reversed them?

saifoo.khan
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Nope.

mathslover
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You have marked drama and athletics as 19 members, right?

saifoo.khan
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No idea. :S @Mimi_x3

mathslover
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can't say mimi ... as I prefer to solve these type of questions by venn diagrams. It makes understanding better.

mathslover
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saifoo.khan
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Ohh. I wrote it wrong here. On the paper it's in the right order.

amistre64
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you should start in the middle and work your way outwards

mathslover
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Yes thought the same Saif.

saifoo.khan
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dw:1365078648571:dw

saifoo.khan
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How? @amistre64

amistre64
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12 students total are in BOTH A and D, we already know 5 of them, whats left? 12  5 = ?

mathslover
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Now we will exclude the all three three club members from the common areas .

mathslover
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Yep the one amistre suggested.

amistre64
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we know 13 total are in BOTH, B and A. and we already know of 5 of them, 13  5 = ?

saifoo.khan
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Sorry. Don't get it. :/ @amistre64

saifoo.khan
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How we already know 5 of them?

mathslover
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dw:1365078755446:dw the boundary I drew has 12 members. Right?

saifoo.khan
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right

amistre64
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mathslover
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Saif, we know that there are 5 members in common with all the three clubs.
teenon club mein 5 members to common hain hi ? right?

amistre64
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amistre64
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mathslover
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Now we have the intersection of athletics and drama as : 5 + something = 12 .. getting it?


saifoo.khan
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I totally get that subtraction thing. Whats next?

mathslover
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Good.

amistre64
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you are given the top level values, the venn has 4 sections for each top level, 3 of which are known.
keep working the solution in the same manner

mathslover
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May I interupt with a diagram ?

amistre64
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dw:1365079086252:dw

mathslover
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amistre64
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saifoo.khan
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Nice work @amistre64 and @mathslover . Leave rest of me.
Thanks a lot. (:

mathslover
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I would stop myself now. Amistre, continue.

amistre64
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good luck ;)

mathslover
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You're welcome!

saifoo.khan
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Thank you!
