Current location - Training Enrollment Network - Mathematics courses - There are 25 students in the first monthly math test of grade 9 in Handian Middle School, and the third monthly math test 100. If the growth rate is the same every time, what is the growth rate?
There are 25 students in the first monthly math test of grade 9 in Handian Middle School, and the third monthly math test 100. If the growth rate is the same every time, what is the growth rate?
Solution: If each growth rate is x(x is a percentage), the number of people who pass the second monthly exam is 25( 1+x), and the number of people who pass the third monthly exam is 25( 1+x)X( 1+x).

25( 1+X)X( 1+X)= 100

(1+x)=2 or -2.

X>0, so x= 1= 100%.

A: The growth rate of the number of people who pass the monthly examination is 100%.