Q11 Find the probability that a leap year has 52 Sundays.

Q12 Out of 17 applicants, there are 8 boys and 9 girls. Two persons are to be selected for the job. Find the probability that at least one of the selected persons will be a girl.

Q13 In a race where 12 cars are running, the chance that car X will win is 1/6, that Y will win is 1/10 and that Z will win is 1/8. Assuming that a dead heat is impossible, find the chance that one of them will win.

Q14 The probability that Alex will solve a problem is 1/5. What is the probability that he solves at least one problem out of 4 problems?

Q15 In his room, Dumbo has three trousers. One of them is black, the second is blue, and the third is brown. In his room, he also has four shirts. One of them is black and the other 3 are white. He opens his room in the dark and picks out one shirt and one trouser pair without examining the colour. What is the likelihood that neither the shirt nor the trouser is black?

Q16 Two dice are thrown together. What is the probability that the sum of the number on the two faces is divisible by 4?

Q17 Two dice are thrown together. What is the probability that the Product of the number is odd ?

Q18 A bag contains 5 red and 3 green balls. Another bag contains 4 red and 6 green balls. If one ball is drawn from each bag. Find the probability that one ball is red and one is green.

Q19 In a charity show, tickets numbered consecutively from 101 through 350 are placed in a box. What is the probability that a ticket selected at random (blindly) will have a number with a hundredth digit of 2?

Q20 When 3 fair coins are tossed together, what is the probability of getting at least 2 tails?