# Test: Probability - Challenging

Double click on maths expressions to zoom
Question 1:   There are $4$ white and $8$ black balls in the basket. What is the probability that a ball picked at random is of white colour?
$\frac{1}{2}$
$\frac{1}{3}$
$\frac{4}{6}$
$\frac{1}{4}$
Question 2:   One tile is picked from a domino set. What is the probability that the picked tile will have a sum of dots equal to $5$ ?
$\frac{1}{5}$
$\frac{5}{28}$
$\frac{1}{28}$
$\frac{3}{28}$
Question 3:   There are $15$ balls in the box, numbered from $1$ to $15$ . One ball is picked at random from the box. What is the probability that the number of the picked ball is less than $8$ ?
$\frac{8}{15}$
$\frac{1}{15}$
$\frac{7}{8}$
$\frac{7}{15}$
Question 4:   A girl picks one natural number from $1$ to $20$ . What is the probability that the number is a factor of $20$ ?
$\frac{3}{20}$
$\frac{1}{20}$
$\frac{3}{10}$
$\frac{1}{10}$
Question 5:   What is the probability of getting an odd number when a fair dice is thrown?
$\frac{1}{3}$
$\frac{1}{2}$
$\frac{1}{6}$
$\frac{2}{3}$
Please note, you have solved only half of the test. For the complete test get a Must Have account. Get started