# of Jelly beans in a 1-liter jar
Emily Oxford and Gunnar Parker
How many cubic centimeters are in a liter jar?
1,000
What is the approximate size of a jelly bean?
2 cm long
1.5 cm in diameter
Question involving volume of the liter jar filled with jelly beans
Aren't there spaces between all of the jelly beans when the liter jar is completely full?
--- Yes, we're going to say approximately 80% of the liter jar is filled with jelly beans, and the rest will be the spaces between them.
Equation for finding the volume of 1 jelly bean:
1 Jelly bean= h(3) (d/2)^2
2 cm x 3 (1.5 cm/2)^2 = 27/8
Final Equations
Number of jelly beans = (Volume of jar) (Volume of one bean)
Number of jelly beans = (.80 x 1,000) (27/8) = Approximately 240 jelly beans
*remember to multiply by 1,000 because there are that many cubic centimeters in 1 liter jar.