A box contains 20 cards marked with numbers 1 to 20. One card is drawn at random. Write the event A using the number on the card is multiple of 4. Write S, n(S), A and n(A).

A box contains 20 cards marked with numbers 1 to 20. One card is drawn at random. Eevent A is the number on the card which is multiple of 5. Write S , n(S) A and n(A) .

20 cards are numbered from 1 to 20. One card is then drawn at random. What is the probability that the number on the card will be : a multiple of 4 ?

20 cards are numbered from 1 to 20. One card is then drawn at random. What is the probability that the number on the card will be : odd?

A box contains 20 cards marked with the number 1 to 20 . One card is drawn from this box at random. What is the probability of the following events The number on the card is a prime number

20 cards are numbered from 1 to 20. One card is then drawn at random. What is the probability that the number on the card will be : not a multiple of 4 ?

A box contains 20 cards marked with the number 1 to 20 . One card is drawn from this box at random. What is the probability of the following events The number on the card is a perfect square.

20 cards are numbered from 1 tro 20. One card is drawn at random. What is the probability that the number on the cards is: (i) a multiple of 4 ? (ii) not a multiple of 4?

20 cards are numbered from 1 to 20. One card is then drawn at random. What is the probability that the number on the card will be : greater than 12?

A box contains 20 cards marked with the number 1 to 20 . One card is drawn from this box at random. What is the probability of the following events : The number on the card is a prime number