Question

.A bacteria culture begins with 15 bacteria which double in amount every hour. How many bacteria exist in the culture at the 13th hour?

61,440

782,580

7,971,615

23,914,845

Answer 1

Total no. of bacteria after n generations = (2)n x initial no. of bacteria
= 4096 x 15 = 61440

Answer 2

Thank you! :3