In an experiment, the population of bacteria is increasing at the rate of 100% every minute. The population is currently at 50 million. How much was the population of bacteria minute ago?

Solution

Solution

Amount before addition : 25

Solution steps

Translate the problem into an equation:

50 = x + 1 \cdot x

50 = x + 1 \cdot x : x = 25

Amount before addition : 25

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