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Try to draw a venn diagram first
Can you do that Saif ?
I have already drawn it. Still unable to do it. :s
No problem. You would do it now.
Only once you help me then i'll be able to do it.
It is given that 12 members are of athletics and drama both . |dw:1365078073152:dw|
|dw:1365078114787:dw|Now tell me that to do?!
Check that again! I think there is some fault.
Where? In the question?
In the diagram. Drama and athletics = 12 members. and Drama and basket =19 . Have you reversed them?
You have marked drama and athletics as 19 members, right?
No idea. :S @Mimi_x3
can't say mimi ... as I prefer to solve these type of questions by venn diagrams. It makes understanding better.
Ohh. I wrote it wrong here. On the paper it's in the right order.
you should start in the middle and work your way outwards
Yes thought the same Saif.
12 students total are in BOTH A and D, we already know 5 of them, whats left? 12 - 5 = ?
Now we will exclude the all three three club members from the common areas .
Yep the one amistre suggested.
we know 13 total are in BOTH, B and A. and we already know of 5 of them, 13 - 5 = ?
Sorry. Don't get it. :/ @amistre64
How we already know 5 of them?
|dw:1365078755446:dw| the boundary I drew has 12 members. Right?
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?
Now we have the intersection of athletics and drama as : 5 + something = 12 .. getting it?
I totally get that subtraction thing. Whats next?
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
May I interupt with a diagram ?
Nice work @amistre64 and @mathslover . Leave rest of me. Thanks a lot. (:
I would stop myself now. Amistre, continue.
good luck ;)
@saifoo.khan , there is a better explanation there : http://www.mathsisfun.com/sets/venn-diagrams.html . Just have a look there.