Question

how many bacterias are produduced in four hours if it divides every half hour
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Answer 1

256 bacteria

• 256 bacteria will be released in four hours if a bacterium divides every half an hour.

Answer 2

Answer:

256

Explanation:

If a bacterium divides once in every half an hour, it means it will double in half an hour.

Hence, a number of the bacterium after half an hour will be 1 x 2 = 2. After one hour, the number of bacterium will be 2 x 2 = 4.

Similarly, in one and a half hours, it will be 4 x 2 = 8.

In 2 hours, it will be 8 x 2 = 16. In two and half hours, it will be 16 x 2 = 32. In three hours, it will be 32 x 2 = 64.

In three and a half hours, it will be 64 x 2 = 128. Hence, in four hours, the number of bacterium will be 128 x 2 = 256.