Curioustab

Home » Aptitude » Probability

In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize?

2/7
5/7
1/5
1/2

Correct Answer: 2/7

Explanation:

Total number of outcomes possible, n(S) = 10 + 25 = 35

Total number of prizes, n(E) = 10

$P (E) = \frac{n (E)}{n (S)} = \frac{10}{35} = \frac{2}{7}$

← Previous Question Next Question→

More Questions from Probability

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?
Two dice are tossed. The probability that the total score is a prime number is:
What is the probability of getting 53 Mondays in a leap year?
A bag contains 4 white, 5 red and 6 blue balls. Three balls are drawn at random from the bag. The probability that all of them are red, is:
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.
A letter is takenout at random from 'ASSISTANT' and another is taken out from 'STATISTICS'. The probability that they are the same letter is :
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, is:
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?
Two cards are drawn together from a pack of 52 cards. The probability that one is a spade and one is a heart, is:
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?

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion