Try this ACT math practice question that tests your general problem solving skill.

99 people are sitting in 23 vans. Each van can seat at most 6 people. What is the greatest possible number of vans with exactly one person sitting in it?

1. $\quad 6$
2. $\quad 7$
3. $\quad 8$
4. $\quad 9$
5. $\quad 10$

Try this ACT math practice question on quadratic equations and the graphs of the corresponding parabola:

If the parabola $y=-x^2 + bx – 8$ has its vertex on the $x-$axis, then $b$ must be:

1. $\quad \textrm{a positive integer}$
2. $\quad \textrm{a positive or a negative rational number}$
3. $\quad \textrm{a positive rational number}$
4. $\quad \textrm{a positive or a negative irrational number}$
5. $\quad \textrm{a negative irrational number}$

 
Try this ACT math practice question on the concept of least common multiple:

What is the least common multiple of the first ten positive integers?

1. $\quad 630$
2. $\quad 1260$
3. $\quad 2520$
4. $\quad 5040$
5. $\quad 10800$