Advertisements
Advertisements
प्रश्न
A bag contains 16 coloured balls. Six are green, 7 are red and 3 are white. A ball is chosen, without looking into the bag. Find the probability that the ball chosen is not white.
उत्तर
Balls in the bag = 16 = Number of balls that could be drawn
n(S) = 16
Not a white ball = 16 – number of white balls = 16 – 3 = 13 = E
n(E) = 13
Probability of not drawing a white ball = `(n(E))/(n(S)) = 13/16`
APPEARS IN
संबंधित प्रश्न
In a single throw of a dice, find the probability that the number will be an odd number.
A bag contains six identical black balls. A child withdraws one ball from the bag without looking into it. What is the probability that he takes out a black ball?
Hundred identical cards are numbered from 1 to 100. The cards are well shuffled and then a card is drawn. Find the probability that the number on the card drawn is greater than 85.
A ball is drawn at random from a box containing 12 white, 16 red and 20 green balls. Determine the probability that the ball drawn is not green.
A card is drawn from a pack of 52 cards. Find the probability that the card drawn is a black ace.
A bag contains 3 red balls, 4 blue balls and 1 yellow ball, all the balls being identical in shape and size. If a ball is taken out of the bag without looking into it; find the probability that the ball is yellow.
From a well-shuffled deck of 52 cards, one card is drawn. Find the probability that the card drawn is a face card.
A box contains 7 red balls, 8 green balls and 5 white balls. A ball is drawn at random from the box. Find the probability that the ball is neither red nor white.
All the three face cards of spades are removed from a well-shuffled pack of 52 cards. A card is then drawn at random from the remaining pack. Find the probability of getting a black face card.
Two dice are thrown at the same time. Find the probability that the sum of the two numbers appearing on the top of the dice is less than or equal to 12.
