Ratios

[ssw513]

If Sam has a jar of marbles and the ratio of red to blue marbles is 4:5. How many blue marbles are in the jar if the jar has 60 marbles. Maybe this is a trick question - but I have drwan it out and the highest I can get is 54 total marbles with 24 being red and 30 being blue. There is no way to split 6 into a 4:5 ratio - so do I just say my answer plus six other marbles (neither red nor blue)?

 

[galactus]

If there are 60 marbles, then 60(4/9)=80/3=26.667 red marbles.
Then there would be 100/3=33.333 blue ones. I know, you can't hardly have a fraction of a marble.

If there were 63 marbles, then you could have 28 reds and 35 blue.