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The mass of a patient decreased by 20 percent every month. If his mass before the decrease was 90kg, how many kilograms had he lost after 3 months ?
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The mass of a patient decreased by 20 percent every month. If his mass before the decrease was 90kg, how many kilograms had he lost after 3 months ?

User Michael Tamm
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7 votes
I believe it’s 36kg
User Parsethis
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