Ticket 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 ?

(A)

^{1}/_{2}

(B)

^{2}/_{5}

(C)

^{8}/_{15}

(D)

^{9}/_{20}

Question-2

A bag contains 20 coloured balls.8 are red,6 are blue,3 are green,2 are white and 1 is brown.A ball is chosen at random from the bag.What is the probability that the ball chosen is blue or red?

(A)

^{6}/20

(B)

^{8}/20

(C)

^{14}/20

(D)

1

Question-3

Three unbiased coins are tossed. What is the probability of getting at most two heads ?

(A)

^{3}/_{4}

(B)

^{1}/_{4}

(C)

^{3}/_{8}

(D)

^{7}/_{8}

Question-4

Nine playing cards are numbered 2 to 10 .A card is selected from them at random. probability that the card will be a multiple of 4 is

(A)

^{1}/9

(B)

^{2}/9

(C)

^{2}/10

(D)

^{1}/10

Question-5

If A and B are two independent events then the value of P(^{A}/_{B} ) is

(A)

0

(B)

1

(C)

P(A)

(D)

P(B)

Question-6

The probability that a leap year will contain 53 Sundays is

(A)

^{5}/_{7}

(B)

^{4}/_{7}

(C)

^{2}/_{7}

(D)

^{1}/_{7}

Question-7

Total probability of an event =

(A)

0

(B)

0.5

(C)

0.75

(D)

1

Question-8

If two coins are tossed once. What is the probability of getting at least one head?

(A)

^{1}/4

(B)

^{2}/4

(C)

^{3}/4

(D)

1

Question-9

One card is drawn at random from a pack of 52 cards .What is the probability that the cards drawn is a face card (Jack, Queen , and king only ?

(A)

^{1}/_{13}

(B)

^{3}/_{13}

(C)

^{1}/_{4}

(D)

^{9}/_{52}

Question-10

There are four letters and four envelopes ,then the probability for all the letters not despatching in the right envelope is

(A)

^{19}/_{24}

(B)

21/_{23}

(C)

23/_{24}

(D)

25/_{26}

Your Score 0/10

Click here to see your answersheet and detailed track records.