Question

since 1999 Rubi has gained 2 kilograms of weight every year. in 2009 he was 25% heavier than is 1999.how much did Ruby weight in 2005?​

Answer 1

Total weight gain in 10 years = 10x 2 = 20 kg =

25 kg gain if Robys weight is 100 kg

20 kg gain if Robys weight is ( 100x20)/25 = 80 kg =

In 2005 Robys weight = 80 + (6x2)

= 92 kg

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