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

Question

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

tkhunny · Answer

How many friends were there in all?

How many chose song A?  How many were left?

anonymous · Answer

2.5 chose song a

tkhunny · Answer

I hope that doesn't make sense to you.  Can half a person choose a song?

30(2/5) = 12 -- This is the number that choose A.