9 cards are numbered as 1,2,3,4,5,6,7,8.9. They are kept in a box and mixed thoroughly. One card is chosen at random. What is the probability of getting a prime number ?

8 cards are numbered as 1,2,3,4,5,6,7,8 respectively. They are kept in a box and mixed thoroughly. One card is chosen at random. What is the probability of getting a number less than 4?

Ten cards are numbered as 1,2,3,4,5………….10 respectively. They are kept in a box and mixed throughly. One card is chosen at random from the box. What is the probability of (i) getting the number 8? (ii) getting a number less than 5? (iii) getting a number greater than 4? (iv) getting a 1-digit number?

Cards each marked with one of the numbers 4, 5, 6, ......, 20 are placed in a box and mixed thoroughly. One card is drawn at random from the box. What is the probability of getting an even number?

Cards each marked with one of the numbers 4,5,6,......,20 are placed in a box and mixed thoroughly.One card is drawn at random from the box.What is the probability of getting an even number?

Cards, each marked with one of the numbers 6,7,8,…,15, are placed in a box and mixed thoroughly. One card is drawn at random from the box. What is the probability of getting a card with number less than 10?

Cards each marked with one of the numbers 6,7,8 . . .15 are placed in the box and mixed throughly. One card is drawn at the random from the box. What is the probability of getting a card with number less than 10 ?

Cards marked with numbers 5,6,7,......,30 are placed in a box and mixed thoroughly and one card is drawn at random from the box. What is the probability that the number on the card is (i) a prime number? (ii) a multiple of 3 or 5? (iii) neither divisible by 5 nor by 10?

cards marked with numbers 1, 2,3,.....,25 are placed in a box and mixed thoroughly and card is drawn at random from the box what is the probability that the number of the card is a prime number

Cards marked with numbers 3, 4, 5, .........,50 are placed in a box and mixed thoroughly. One card is drawn at random from the box, find the probability that the number on the drawn card is a two digit number.

Cards marked with numbers 3, 4, 5, ......, 50 are placed in a box and mixed thoroughly. One card is drawn at random from the box. Find the probability that number on the drawn card is dividing by 7.