A die is thrown once. Find the probability of getting a prime number.
Probability
Original Khojo Papers practice question — not from a past board paper.
3/26
No citable source has been recorded for this record. Treat it as practice material, not as fact.
The red face cards are the jack, queen and king of hearts and of diamonds, so there are 6 favourable cards. The probability is 6/52 = 3/26.
From the same topic and chapter, at a similar level.
A die is thrown once. Find the probability of getting a prime number.
Probability
A die is thrown once. Find the probability of getting a number greater than 4, and the probability of getting a number that is not greater than 4.
Probability
A bag contains 5 red, 3 white and 2 black balls. One ball is drawn at random. Find the probability that it is red, and the probability that it is not black.
Probability
A box contains 20 cards numbered 1 to 20. One card is drawn at random. Find the probability that the number on it is a multiple of 3.
Probability
Two coins are tossed together. Find the probability of getting exactly one head.
Probability
Two dice are thrown together. Find the probability that the sum of the numbers is 8.
Probability