Advertisements
Advertisements
Question
Aarushi sold 100 lottery tickets in which 5 tickets carry prizes. If Priya purchased a ticket, what is the probability of Priya winning a prize?
Options
\[\frac{19}{20}\]
\[\frac{1}{25}\]
\[\frac{1}{20}\]
\[\frac{17}{20}\]
Solution
100 lottery tickets were sold in which 5 tickets carry prize
TO FIND: Probability of Priya winning a prize
Total number of tickets is100
Total number of prize carrying tickets is 5
`"We know that PROBABILITY "= "Number of favourable event"/"Total number of event"`
Hence probability of Priya winning a prize is equal to `5/100=1/20`
APPEARS IN
RELATED QUESTIONS
A die is thrown, then find the probability of the following events:
A is an Event: getting an odd number on the top upper surface of the die.
B is an Event: getting a perfect square on the upper surface of the die.
In a certain race, there are three boys A, B, C. The winning probability of A is twice than B and the winning probability of B is twice than C. If P(A) + P(B) + P(C) = 1, then find the probability of win for each boy.
In a single throw of a pair of different dice, what is the probability of getting a total of 9 or 11?
The faces of a die bear numbers 0, 1, 2, 3, 4, 5. If the die is rolled twice, then find the probability that the product of digits on the upper face is zero.
Solve any two of the following.
If two coins are tossed simultaneously, find the probability of getting a head on both the coins.
Cards numbered 1 to 30 are put in a bag. A card is drawn at random from this bag. Find the probability that the number on the drawn card is not divisible by 3
All the black face cards are removed from a pack of 52 cards. The remaining cards are well shuffled and then a card is drawn at random. Find the probability of getting black card
In a bag there are 44 identical cards with figure of circle or square on them. There are 24 circles, of which 9 are blue and rest are green and 20 squares of which 11 are blue and rest are green. One card is drawn from the bag at random. Find the probability that it has the figure of green
A number is selected from numbers 1 to 25. The probability that it is prime is
Two numbers 'a' and 'b' are selected successively without replacement in that order from the integers 1 to 10. The probability that\[\frac{a}{b}\] is an integer, is
If a two digit number is chosen at random, then the probability that the number chosen is a multiple of 3, is
A bag contains 4 white balls, 5 red balls, 2 black balls and 4 green balls. A ball is drawn at random from the bag. Find the probability that it is red or white.
A game of chance consists of spinning an arrow which is equally likely to come to rest pointing to one of the numbers 1, 2, 3,..., 12 as shown in the figure. What is the probability that it will point to an even number ?
From a well-shuffled deck of 52 cards, one card is drawn at random. What is the probability of getting a queen?
If two coins are tossed, then find the probability of the event: No heads turns up.
Cards numbered 7 to 40 were put in a box. Poonam selects a card at random. What is the probability that Poonam selects a card which is a multiple of 7?
A bag contains a black ball, a red ball and a green ball, all the balls are identical in shape and size. A ball is drawn from the bag without looking into it. What is the probability that the ball drawn is:
(i) a red ball
(ii) not a red ball
(iii) a white ball.
Two coins are tossed together. What is the probability of getting:
(i) at least one head
(ii) both heads or both tails.
What is the probability of throwing an even number with a single standard dice of six faces?
Three coins are tossed simultaneously. What is the probability of getting at least one head?
