42 students is 70% of how many students?
We can solve this problem by setting up a proportion. Let x be the total number of students.
42/x = 70/100
Now, we can cross multiply to solve for x:
42 * 100 = 70 * x
4200 = 70x
Dividing both sides of the equation by 70, we find:
x = 4200/70
x = 60
Therefore, 42 students is 70% of 60 students.