Mathematics
A box contains a certain number of balls. On each of 60% balls, letter A is marked. On each of 30% balls, letter B is marked and on each of remaining balls, letter C is marked. A ball is drawn from the box at random. Find the probability that the ball drawn is :
(i) marked C
(ii) A or B
(iii) neither B nor C.
Related Questions
Sixteen cards are labelled as a, b, c, ………., m, n, o, p. They are put in a box and shuffled. A boy is asked to draw a card from the box. What is the probability that the card drawn is :
(i) a vowel
(ii) a consonant
(iii) none of the letters of the word median ?
From a pack of 52 playing cards, all cards whose numbers are multiples of 3 are removed. A card is now drawn at random. What is the probability that the card drawn is
(i) a face card (King, Jack or Queen)
(ii) an even numbered red card ?