probability
A coin is thrown 3 times.what is the probability that atleast one head is obtained?
1/2
Three unbiased coins are tossed. What is the probability of getting at most two heads?
3/8
One card is drawn at random from a pack of 52 cards. What is the probability that the card drawn is a face card (Jack, Queen and King only)?
3/13
A bag contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
4/7
I forgot the last digit of a 7-digit telephone number. If 1 randomly dial the final 3 digits after correctly dialing the first four, then what is the chance of dialing the correct number?
1/1000
There are 5 green 7 red balls. Two balls are selected one by one without replacement. Find the probability that first is green and second is red.
35/132
A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue?
5/7
in a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?
1/3
A basket contains 10 apples and 20 oranges out of which 3 apples and 5 oranges are defective. If we choose two fruits at random, what is the probability that either both are oranges or both are non defective?
316/435
Four dice are thrown simultaneously. Find the probability that all of them show the same face.
1/216
What is the probability of getting a sum of 7 when two dice are thrown?
6/36 or 1/6
In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?
1/3
From a pack of 52 cards, two cards are drawn together at random. What is the probability of both the cards being kings?
1/221
In a class, there are 15 boys and 10 girls. Three students are selected at random. The probability that 1 girl and 2 boys are selected
21/46
What is the probability of getting 53 Mondays in a leap year?
2/7
Find the probability of getting a numbered card when a card is drawn from the pack of 52 cards.
9/13
Tickets 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?
9/20
A problem is given to three students whose chances of solving it are 1/2, 1/3 and 1/4 respectively. What is the probability that the problem will be solved?
3/4
In a class, 30% of the students offered English, 20% offered Hindi and 10% offered both. If a student is selected at random, what is the probability that he. has offered English or Hindi ?
2/5
Two brother X and Y appeared for an exam. The probability of selection of X is 1/7 and that of B is 2/9. Find the probability that both of them are selected.
2/63
A coin is thrown 3 times.what is the probability that atleast one head is obtained?
1/8
What is the probability of getting a sum 9 from two throws of a dice?
1/9
1 divided by 0
∞ or 0
Two dice are thrown together .What is the probability that the sum of the number on the two faces is divided by 4 or 6.
7/18
A box contains 10 bulbs,of which just three are defective. If a random sample of five bulbs is drawn, find the probability that the sample contains exactly one defective bulb.
5/12