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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