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.

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 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 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 1, 3, 5 .... 49 are placed in a box and mixed thoroughly. One card is drawn from the box. Find the probability that the number on the card is : divisible by 3

Cards marked with numbers 1,3,5,…101 are placed in a bag and mixed thoroughly. A card is drawn at random from the bag. Find the probability that a number on the drawn card is (i) less than 19, (ii) a prime number less than 20.

Cards are marked with the numbers from 2 to 151 are placed in a box and mixed thoroughly. One card is drawn at random from this box. Find the probability that the number on the card is: (i) a prime number less than 75. (ii) an odd number.

Cards marked 1, 3, 5 .... 49 are placed in a box and mixed thoroughly. One card is drawn from the box. Find the probability that the number on the card is : a composite number

Cards marked 1, 3, 5 .... 49 are placed in a box and mixed thoroughly. One card is drawn from the box. Find the probability that the number on the card is : multiple of 3 and 5