6. Given: Q = {x: x is an even number, x <12} and T = {x: x is a multiple of 4, x < 20}. Find Q ∪ T.
A) {2, 4, 6, 8, 10, 12}
B.  {2, 4, 6, 8, 10, 12, 14}
C) {4, 8, 12, 16, 20}
D) {2, 4, 6, 8, 10, 12, 16}

7. Three coins are tossed. Find the probability of getting at least 1 tail.
A) 7/8 

B.  6/7
C) 5/6 

D. 4/5

8. A box contains 7 blue marbles, 6 red marbles, and 4 white marbles. If a marble is picked at random, what is the probability that it is blue marble?
A) 4/17 

B.  6/17
C) 7/17 

D) 4/13

9. A committee of two is to be chosen at random from a group of 5 students
consisting of 3 boys and 2 girls. What is the probability that a committee consisting of 2 girls will be chosen?
A) 1/10

B.  1/5
C) 3/10 

D) 3/5

10. A card is drawn at random from a box of 20 cards numbered from 1 to 20. Find the probabilities of getting a number which is multiple of 4
A) 1/3 

B.  1/4
C) 1/2

D) 3/4