One-fourth of the students at a nursery school are 5 years old or older. If 15 students have not yet reached their fourth birthday, and a total of 25 students are not between 4 years old and 5 years old, how many children are in the nursery school? Choose the correct choice:
A) 20  B) 25  C) 30  D) 35  E) 40
x/4 students are &gt; 5 yrs   15 students are &lt; 4 yrs   x/4+15 = 25   x/4 = 10   x = 40   Answer: 40
<result>E</result>
One-fourth of the students at a nursery school are 5 years old or older. If 15 students have not yet reached their fourth birthday, and a total of 25 students are not between 4 years old and 5 years old, how many children are in the nursery school?