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Weightof Sovanbabu is 80 kg. In order to...

Weightof Sovanbabu is 80 kg. In order to reduce his weight, he started regular morning walk. He decided to reduce his weight every year by 10%. Calculaate the weight of Sovanbabu after 3 years.

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The present weight of Sovanbabu`=80` kg
`:.` The weight of Sovanbabu will be after 3 years `=80xx(1-10/100)^(3)` kg `=80xx(9/10)^(3)` kg
`=80xx(9xx9xx9)/(10xx10xx10)kg=58.32kg`
Hence after 3 years the required weight of Savanbabu will be 58.32 k.
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