Three letters, to each of which corresponds an addressed envelope are placed in the envelopes at random.The probability that all letters are placed in the right envelopes is:
1/3
1
1/6
0
The probability that a vowel selected at random in English language is an " i " is:
1/5
1/26
1/4
Two dice are thrown at a time.The probability that the difference of the numbers shown on the dice is 1 is:
5/18
1/36
When two dice are thrown, the probability of getting a number always greater than 4 on the second dice is:
1/30
The probability for a randomly selected number out of 1,2,3,4, -----, 25 to be a prime number is:
2/25
23/25
10/25
9/25
A and B are friends.What is the probability that both will have the different birthdays?
364/365
1/365
2/365
3/365
If a coin is tossed twice, the probability of getting at least one head is :
1/2
3/4
2/4
A bag contains 3 white and 5 red balls.If a ball is drawn at random,the probability that the drawn ball to red is :
3/8
5/8
3/15
5/15
From a normal pack of cards, a card is drawn at random.The probability of getting a jack or a king is :
2/52
1/52
2/13
2/12
In a single throw of a dice, find the probability of getting a number which is not greater than 2?
2/3
