The number of bacteria in a certain culture doubles very hour. If there were 30 bacteria present in the culture originally, how many bacteria will be present at the end of 2nd hour? 4th hour? nth hour?
As per question, the number of bacteria in a certain culture doubles every hour. So, they form a G.P. in which a = 30 and r = 2.
Bacteria present after 2nd hour, 4th hour and nth hour are T3, T5 and Tn+1 i.e., ar2, ar4 and arn.
i.e., 30(2)2, 30(2)4 and 30(2n) respectively.
Rate this question :
How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Interactive quiz on inequalities involving AM and GM45 mins
Check Your progress Part 2| Interactive Quiz: Sequence & Series47 mins
Sequence & Series (Lecture 1)56 mins
Sequence & Series (Lecture 5)42 mins
Sequence & Series (Lecture 7)37 mins
Sequence & Series (Lecture 6)42 mins
Trigonometric Series45 mins
Use of sigma in finding sum42 mins
Sequence & Series (Lecture 8)35 mins
Check Your progress Part 3| Interactive Quiz: Sequence & Series46 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
view all courses
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation