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Problem related to the radioactive substance

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Reference no: EM131595644

Question: 1. One hundred kilograms of a radioactive substance decay to 40 kg in 10 years. How much remains after 20 years?

2. A culture of bacteria originally numbers 500. After 2 hours there are 1500 bacteria in the culture. Assuming exponential growth, how many are there after 6 hours?

Reference no: EM131595644

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