A group of friends were voting for their favorite song: two-fifths chose song A, one-sixth of the remaining friends chose song B, and the rest chose song C. If there were thirty friends in all, how many chose song C?
ten
twelve
fifteen
eighteen

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OpenStudy (yellowlegoguy99):

@E.ali

OpenStudy (anonymous):

Look we have :
1/5+1/6 = Persons chosed
K ?!

OpenStudy (anonymous):

and :
1/5+1/6=6+5/30=11/30

OpenStudy (anonymous):

@yellowlegoguy99

OpenStudy (yellowlegoguy99):

11/30 isnt a result...?

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OpenStudy (yellowlegoguy99):

Hellooo?

OpenStudy (anonymous):

Look :
now :
30/30-11/30=19/30=persons in C
Now have :
19__________________x
30_________________30
x=19
Persons C = 19
Got it ?:)

OpenStudy (yellowlegoguy99):

Yup ty :D

OpenStudy (yellowlegoguy99):

Wait...But 19 isnt a result either

OpenStudy (anonymous):

What ???

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OpenStudy (yellowlegoguy99):

Go up to the top and look at the questions and you'll see the results

OpenStudy (anonymous):

oh !
caz I had a fall ...
it was 2/5 not 1/5
....

OpenStudy (anonymous):

Now go the last way and get 2/5 to 1/5 .

OpenStudy (yellowlegoguy99):

I came up with 17.........

OpenStudy (anonymous):

Again :
2/5+1/6=12+5/30
17/30=A & B
30/30-17/30=13/30=C
And :
17_________________x
30________________30
x=17=Persons in C .
But it isnt in answers !!!???
My answer is right !:)Mow !

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