Cards marked with the numbers 2 to101 are placed in a box and mixed thoroughly. One card is drawn from this box. Find the probability that the number of the card is an even number

Cards marked with the numbers 2 to101 are placed in a box and mixed thoroughly. One card is drawn from this box. Find the probability that the number of the card is a prime number less than 25.

Cards marked with the numbers 2 to101 are placed in a box and mixed thoroughly. One card is drawn from this box. Find the probability that the number of the card is a number which is a perfect square.

Cards marked with the numbers 2 to101 are placed in a box and mixed thorougly. One card is drawn from this box. Find the probability that the number of the card is a number less than16

cards marked with numbers 2 to 105 are placed in a box and mixed. one card is chosen at random. The probability that the number on the card is less than 15 is

20 cards numbered1,2,3,4,..,19, 20 are put in a box.One boy draws a card from the box.Find the probability that the number on the card is:Prime.

Suppose 10 cards numbered 1 to 10 are placed in a box and shuffled and one card is drawn at random If A is the event that the number on the card is even, then write A

Suppose 10 cards numbered 1 to 10 are placed in a box and shuffled and one card is drawn at random If A is the event that the number on the card is even, B is the event that the number on the card is more than 3, Find P(A|B)

Ten cards numbered 1 to 10 are placed in a box, mixed up thoroughly and then one card is drawn randomly. if it is known that the number on the drawn card is more than 3, what is the probability that it is an even number?

21 cards numbered1,2,3,4,..,19, 20 are put in a box.One boy draws a card from the box.Find the probability that the number on the card is:Divisible by 3

One card is drawn at random from a pack of 52 cards.Find the probability that the card drawn is an ace.