1.
|
Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?
|
|
|
2.
|
How many integers, greater than 999 but not greater than 4000, can be formed with the digits 0, 1, 2, 3 and 4, if repetition of digits is allowed?
|
|
A.
|
499
|
|
B.
|
500
|
|
C.
|
375
|
|
D.
|
376
|
|
E.
|
501
|
View Answer With Explanation
3.In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize?
A. 1/10 B. 2/5
C. 2/7 D. 5/7
4.How many five digit positive integers that are divisible by 3 can be formed using the digits 0, 1, 2, 3, 4 and 5, without any of the digits getting repeating
|
5.
|
A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue?
|
|
6.A bag contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
A. 3/4 B. 4/7
C. 1/8 D. 3/7
7..There are 10 seats around a circular table. If 8 men and 2 women have to seated around a circular table, such that no two women have to be separated by at least one man. If P and Q denote the respective number of ways of seating these people around a table when seats are numbered and unnumbered, then P : Q equals
|
|
A.
|
9 : 1
|
|
B.
|
72 : 1
|
|
C.
|
10 : 1
|
|
D.
|
8 : 1
|
View Answer With Explanation
8.
|
In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?
|
|
|
|
9.How many factors of 25*36*52 are perfect squares?
|
View Answer With Explanation
10.There are 6 boxes numbered 1,2,...6. Each box is to be filled up either with a red or a green ball in such a way that at least 1 box contains a green ball and the boxes containing green balls are consecutively numbered. The total number of ways in which this can be done is:
|
|
A.
|
5
|
|
B.
|
21
|
|
C.
|
33
|
|
D.
|
60
|
|
E.
|
27
|
View Answer With Explanation
|
