Please rephrase this question. It sounds like you are saying that 13 = 1 in a jar then how many in a jar? and that doesn't make sense.
There has to be 12 marbles in the group. If 4 are red that is 1/3 of 12 and if 3 are blue that is 1/4 of 12. The rest can be any color. That is how you explain how four red marbles can make up 1/3 of a group of marbles and three blue marbles make up 1/4 of the same group :)
2 cups
Bars of WHAT .
Fill up 3 cup jar and pour into the 5 cup jar. Fill the 3 cup jar once more. Pour from the 3 cup jar in order to fill up the 5 cup jar. There will be 1 cup remaining in the 3 cup jar. Pour the contents of the 5 cup jar into the stock bottle and pour the contents of the 3 cup jar into the 5 cup jar (1 cup). Fill up the 3 cup jar once more then add it to the contents of the 5 cup jar to have a total volume of 4 cups in the 5 cup jar.
Empty the 5-liter jar and remove 1 liter of the 7-liter jar.
1 in 52
probability of pulling out a purple marble = 20/85probability of NOT pulling out a purple marble = 1 - 20/85 = 65/85 = 13/17
This isn't as easy as finding density and volume etc. You need to get some marbles, Count how many will fill a pint jar. Multiply this by 8. The marbles will create empty spaces between themselves depending on the size of the marbles. Small, med, large? And each size creates different amounts of empty space between them. So the only way is like I outlined above.
It is 50/100 = 1/2
5/6
There are 18 pennies in the jar.
5 out of 15 or 1/3 1:3
Dark Corners - 2012 Jar of Pennies 1-13 was released on: USA: 13 December 2012
Marbles - 2012 Holiday Spirit 1-5 was released on: USA: 13 January 2013
24
There has to be 12 marbles in the group. If 4 are red that is 1/3 of 12 and if 3 are blue that is 1/4 of 12. The rest can be any color. That is how you explain how four red marbles can make up 1/3 of a group of marbles and three blue marbles make up 1/4 of the same group :)
20% of 50 marbles is 1 fifth of the marbles in the bag. so 50 marbles divided by 5 =10 blue marbles