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Standard IX

Geography

Population and Its Growth

The bacteria ...

Question

The bacteria in a culture grows by 10% in the first hour, decreases by 10% in the second hour and again increases by 10% in the third hour. If the original count of the bacteria in a sample is 10000, find the bacteria count at the end of 3 hours.

10890

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11000

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9890

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12990

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Solution

The correct option is A
10890

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The bacteria in a culture grows by 10% in the first hour, decreases by 10% in the second hour and again increases by 10% in the third hour. If the original count of the bacteria in a sample is 10000, find the bacteria count at the end of 3 hours.

The correct option is A 10890

The correct option is A
10890