A culture has 4,096 bacteria, and the count grows by 25% every hour. How many bacteria will there be after 3 hours?
Correct answer D. 8,000
Explanation
Count = 4096 × (1.25)³ = 4096 × 125/64 = 64 × 125 = 8,000. Hour by hour the count goes 4096 → 5120 → 6400 → 8000.
Answer checked How we write and check questions
Discussion