A letter is known to have come either from LONDON or CLIFTON. On the envelope just two consecutive letters ON are visible. What is the probability that the letter has come from (i) LONDON (ii) CLIFTON?

The letter of word SOCIETY are placed at random in a row what is the probability that three vowels comes together?

A letter is taken at random from the letters of the word STATISTICS and another letter is taken at random from the letters of the word ASSISTANT. What is the probability that the chosen two are the same letter.

A letter is chosen at random from the 'ASSASSINATION'. Find the probability that letter is (i) a vowel (ii) a consonant.

A childhas a die whose six faces show the letters A, B, C, D, E and F. The die is thrown once. What is the probability of getting (i) A? (ii) D

There are 40 students in Class X of a school of whom 25 are girls and 15 are boys. The class teacher has to select one student as a class representative. She writes the name of each student on separate cards, the cards being identical. Then she puts cards in a box and stirs them thoroughly. She then draws one card from the box. What is the probability that the name written on the card is the name of (i) a girl? (ii) a boy?

5 different -letters are kept into 5 envelopes with different address unmindfully. Find the: probability that two letters have been kept into the envelopes of their proper address

Two letters are drawn at random from the word HOME. Write down the sample space. Now find the probability that, both the letters are vowels, at least one is a vowels, one of the letters chosen should be 'M'

Urn A contains 1 white, 2 black and 3 red balls, urn B contains 2 white, 1 black and 1 red ball, and urn C contains 4 white, 5 black and 3 red balls. One urn is chosen at random and two balls are drawn. These happen to be one white and one red. What is the probability that they come from urn A ?

Whats is the probability of arrangement of the letters of the word SOCIETY so that three vowels come together?.