Question

the hockey team has been great! in 2008 they won 20% more games than in 2007. in 2009 they won 50% more games than in 2008. what was their overall percentage increase from 2007 through 2009?

Answer 1

Answer: There is overall percentage increase is 80% from 2007 through 2009.

Explanation:

Let the total games won in 2007 be 100

Percentage of more games won in 2008 = 20%

Number of games won in 2008 will be given by

`(100+20)/(100)* 100\\\\=(120)/(100)* 100\\\\=120`

Percentage of more games won in 2009 = 50%

Number of games won in 2009 will be given by

`(100+50)/(100)* 120\\\\=(150)/(100)* 120\\\\=1.5* 120\\\\=180`

Overall increase from 2007 through 2009 is given by

`180-100\\\\=80`

Overall percentage increase from 2007 through 2009 is given by

`(Difference)/(Original)* 100\\\\=(80)/(100)* 100\\\\=80\%`

Hence, there is overall percentage increase is 80% from 2007 through 2009.