# Red diplomas

He numbers of students with honors in 2013 and 2014 are in ratio 40:49. How big is the year-on-year percentage increase?

Correct result:

p =  22.5 %

#### Solution:

$p=100 \cdot \ \dfrac{ 49-40 }{ 40 }=\dfrac{ 45 }{ 2 }=22.5 \%$

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