Category: Everyday Science | Last updated: 2026-09-18

If a population of bacteria doubles every 20 minutes, starting from 100 cells, how many cells will there be after 1 hour?

A) 200

B) 400

C) 800

D) 1600

Explanation

1 hour = 3 doublings (0→20→40→60 min). 100 → 200 → 400 → 800.

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