Question 1:   Probability that a factory doesn't meet it's production limit is $\frac{3}{25}$. What is the probability that a factory meets the production limit?

Question 2:   What is the probability of throwing $3$ with a cube shaped dice?

Question 3:   What is the probability of throwing $4$ or $5$ with a dice?

Question 4:   What is the probability of throwing $6$ in a first try and $1$ in the second throw with a dice?

Question 5:   What is the probability of picking red king, red queen and red jack from a pack of cards?

Question 6:   Dice was thrown $100$ times. Number $2$ was picked $11$ times. What is the relative frequency of $2$? Is the dice fair?

Question 7:   There are $6$ green balls and $4$ purple balls in a box. What is the probability of picking the green ball?

Question 8:   Six friends sent each other postcards from summer holidays. How many postcards were sent in total?

Question 9:   Six friends shook hands with each other for goodbye. How many handshakes there were in total?

Question 10:   There are $6$ green and $4$ purple balls in a box. How many purple balls must be added to the box, so that probability of picking a purple ball is $\frac{2}{3}$?