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?
Answer: Option B
:
B
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B
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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