While visiting a chocolate factory, John was told that the factory produces 250 chocolate pieces per second. Based on this information, John’s teacher asked him to find out how many pieces of chocolate the factory can produce per minute.
Note: 1 minute = 60 seconds
a. 12,000
b. 15,000
c. 18,000
d. 21,000
Answer: b
Why:
This is a multiplication problem. If one minute = 60 seconds and we know that 250 chocolate pieces are produced per one minute then we must multiply that number by how many seconds are in one minute to get our answer as follows:
(60 seconds / 1 minute) x (250 pieces / 1 second) = 15,000 pieces / 1 minute
Don’t forget to cancel the units for seconds. At that point you are left with the number of chocolate pieces produced per one minute.
©Copyright 2007.Najwa S. Hirn. All rights reserved.
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