You wouldn't believe that I've got a degree in maths, but I can't answer this. My friend, the local pharmacist asked me; this guy is given 20 grams of drug in 100 mls. of water. He's instructed to take 5 mls each day of the solution and top the bottle of solution up with H2O. So the first day he gets 1 gram of drug. The next day, when he takes his 5 mls. of solution, it only contains 0.95 grams of drug, because he's already consumed some of the drug and diluted it. And so on. What is the formula that tells you how many grams of the drug he gets on the nth day?
2006-06-05
20:19:12
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3 answers
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asked by
zee_prime
6
in
Mathematics