Answer:25 %
Step-by-step explanation:
Given
Earlier machine was producing 52 ice cream per minute and
Now it is Producing 65 ice creams per minute
So percentage increase of the machine [tex]=\frac{\text{final-Initial}}{\text{Initial}}\times 100[/tex]
[tex]=\frac{65-52}{52}\times 100[/tex]
[tex]=\frac{13}{52}\times 100[/tex]
[tex]=\frac{1}{4}\times 100=25\ \%[/tex]
So there is increase of 25 % in speed
