Question

A number x is chosen at random from the set of positive integers less than 10. What is the probability that 9/x > x

Answer 1

$\frac{9}{x} > x \\ 9 > {x}^{2} \\ x = r - ( - 3 \: to \: 3) \\ x = 4 \: to \: \: 9 \: as \: 10 \: is \: not \: included \\ p = \frac{6}{10} = \frac{3}{5}$