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Question
Rocky spent 20% more on his bike in 2000 than in 1999. By how much did Rocky have to increase his expenses on bus travel in 2000 when compared to 1999?
Rocky spent 20% more on his bike in 2000 than in 1999. By how much did Rocky have to increase his expenses on bus travel in 2000 when compared to 1999?
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Solution
The correct option is B 100%
b. 100%
In 1999, Expenses on Bike : 25%; Bus: 30%; Expenses on bike increased in 2000 by 20%=>1.2*.25=.30
Thus expenses on bus in 2000=(40/20)*.30 = .60 => % increase: (.6-.3)/(.3)*100=100%
b. 100%
In 1999, Expenses on Bike : 25%; Bus: 30%; Expenses on bike increased in 2000 by 20%=>1.2*.25=.30
Thus expenses on bus in 2000=(40/20)*.30 = .60 => % increase: (.6-.3)/(.3)*100=100%
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