SOLUTION: A jar contains 12 amoeba. The number of amoeba doubles every minute and it takes 30 minutes to fill the jar. How long (in minutes) does it take to fill 1/4 the jar? a) 28 (b) 7

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Question 289001: A jar contains 12 amoeba. The number of amoeba doubles every minute and it takes 30 minutes to fill the jar. How long (in minutes) does it take to fill 1/4 the jar?
a) 28 (b) 7.5
(c) It can’t be determined from the given information
(d) 30 − 120/12
(e) None of the above


Answer by nyc_function(2741) About Me  (Show Source):
You can put this solution on YOUR website!
60/15 = 30/x
Let x = number of minutes.
Can you find x now?