Q6. 
What is the probability that a number selected from numbers 1,2,3,...,30, is prime number, when each of the given numbers is equally likely to be selected? 
A.  9/30 

B.  8/30 

C.  10/30 

D.  11/30 
Q7. 
A bag contains 21 toys numbered 1 to 21. A toy is drawn and then another toy is drawn without replacement. Find the probability that both toys will show even numbers. 
A.  5/21 

B.  9/42 

C.  11/42 

D.  4/21 
Q8. 
A fivedigit number is formed by using digits 1, 2, 3, 4 and 5 without repetition. What is the probability that the number is divisible by 4? 
A.  1/5 

B.  5/6 

C.  4/5 

D.  None of these 
Q9. 
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. 
A.  19/20 

B.  17/20 

C.  8/10 

D.  21/40 
Q10. 
$A$ speaks truth in 75% of cases and $B$ in 80% of cases. In what percent of cases are they likely to contradict each other in narrating the same event? 
A.  35% 

B.  5% 

C.  45% 

D.  22.5% 