Posted by **Riah** on Tuesday, February 22, 2011 at 1:18am.

A music store offers a prize to a customer who can guess the closest, the number of jelly beans that fill a litre jar on the counter. estimate the number of jelly beans in the jar if 1 jelly bean is approximately 2cm (h) by 1.5 cm in diametre (d)

- Maths -
**MathMate**, Tuesday, February 22, 2011 at 11:53am
Assuming a jar of (10cm)³.

Then a crude estimate is to line them up in all three directions:

(10/2)*(10/1.5)*(10/1.5)

=5*6.7*6.7

=225

Note that I have used a fractional number of beans because we don't really line them up perfectly. They will be crossed. Also, the space between two layers could be better used by placing a jellybean in the depression between two beans of the lower layer. This can be automatically done by shaking the jar after it's been filled.

See what others give, hopefully a more refined estimate.

- Maths -
**Anonymous**, Sunday, February 27, 2011 at 8:25pm
222.2222222222222

## Answer This Question

## Related Questions

- math - A music store offers a prize to a computer who can guess the closest, the...
- math - Ms.lee class had to guess how many jelly beans were in a jar. The clues ...
- math - danielle has 30 jelly beans and 18 green jelly beans. What is the ratio ...
- math - please explain how to get the answer to this question. five students make...
- Math - Trying to find how many jelly beans that can be in the jar? Exactly half ...
- 3rd grade math - Five students make the following guesses on the number of jelly...
- math - five students make the following guesses on the number of jelly beans in ...
- math - ms lee class had to guess how many jelly beans were in a jar. The clues ...
- statistics - Four jelly beans are selected, one at a time from a bowl containing...
- Math - Jake ate seven times more jelly beans as Sam. Together they ate 128 jelly...

More Related Questions