SOLUTION: Charlie Bucket recieves one ber of choclate on his birthday. he eats one nibble of the same size each day and manages to make the bar last 30 days? what percent of the choclate bar

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Question 38428: Charlie Bucket recieves one ber of choclate on his birthday. he eats one nibble of the same size each day and manages to make the bar last 30 days? what percent of the choclate bar is left after 18 days?
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
After 18 days, he has eaten 18/30 of the bar. Hence 12/30 is left.
We change 12/30 to 40%, the answer, by dividing 12 by 30.