SOLUTION: In preparation for a party, Heather fills a large jar with gum drops. Before the party begins, Michael see the gum drop jar. He (hoping that no one will realize) takes one-third of
Algebra ->
Quadratic Equations and Parabolas
-> SOLUTION: In preparation for a party, Heather fills a large jar with gum drops. Before the party begins, Michael see the gum drop jar. He (hoping that no one will realize) takes one-third of
Log On
Question 11602: In preparation for a party, Heather fills a large jar with gum drops. Before the party begins, Michael see the gum drop jar. He (hoping that no one will realize) takes one-third of the drops. Soon after, Tanya takes one-third of the gum drops (she too hopes that nobody will notice). Finally, Brian appears and, like the others, takes one-third of the gum drops. If forty gum drops are left in the jar, how many did it originally contain? Answer by Earlsdon(6294) (Show Source):
You can put this solution on YOUR website! Let x = the original number of jelly beans in the jar before the pilfering began.
After Michael has pinched his third, the number left is:
After Tanya's sampling, the number left is:
=
Finally, after Brian has helped himself to one third, there are 40 jelly beans remaining:
Multiply both sides by 27.
Divide both sides by 8.
There were 135 jelly beans in the jar before the crime.
Check:
= 90 = 60 = 40
(