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 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.

One card is drawn at random from a well shuffled deck of 52 cards. What is the probability of getting an ace?

Cards marked with numbers 13, 14, 15, 16 are placed in a box and mixed thoroughly. One card is drawn at random from the box. Find the probability that number on the card drawn is (a) divisible by 5 (b) a number is a perfect square

Cards marked with the numbers 2 to 101 are placed in a box and mixed thoroughly. One card is drawn from this box. Find the probability that the number on the card is: (i) an even number (ii) a number less than 14

Cards marked with numbers 5 to 50 Cards marked with numbers 5 to 50 are placed in a box and mixed thoroughly, A card is drawn from the box at random. Find the probability that the number on the card taken out is (i) prime number less than 10 (ii) a number which is a perfect square

Cards marked with the numbers 2 to 101 are placed in a box and mixed thoroughly. One card is drawn from this box. Find the probability that the number on the card is: (i) a number which is a perfect square (ii) a prime number less than 20.

Cards marked with the numbers 2 to 101 are placed in a box and mixed thoroughly. One card is drawn from this box. Find the probability that the number on the card is: (i)a number which is a perfect square (ii) a prime number less than 20.

Cards bearing numbers 2, 3, 4, ..., 11 are kept in a bag. A card is drawn at random from the bag. The probability of getting a card with a prime number is

Cards bearing numbers 2, 3, 4, ..., 11 are kept in a bag. A card is drawn at random from the bag. The probability of getting a card with a prime number is

Cards bearing numbers 2, 4, 6, 8, 10, 12, 14, 16, 18 and 20 are kept in a bag. A cord is drawn at random from the bag. Find the probability of getting a card which is a prime number.