Question

A bacteria culture begins with 13 bacteria that triple in amount at the end of every hour. How many bacteria exist in the culture at the end of the 10th hour?

a. 13,312
b. 26,624
c. 767,637
d. 2,302,911

Answer 1

C) 767, 637
(initial num bacteria) × 3^(num of hours)

Answer 2

We can make an equation from the given statement above for the number of bacteria that grows at the end of every unit of time. It has been said that in every the bacteria triple the amount.

Number of bacteria = 13x 3^t

where t is the number of hours.

Number of bacteria = 13x 3^(10)
Number of bacteria = 767637 -----> option C