Question

Cards numbered 11 to 60 are kept in a box. If a card is drawn at random from the box. Find the
probability that the number on the card drawn is :-
(i) An odd number.
(11) A perfect square number
ini Divisible by 5
(iv) A prime number less than 20
​

Answer 1

Answer:

there are total 25 odd no. from 11 to 60

so probability of getting odd no. is 25/50 which will be 1/2

perfect square no. are 25,36and 49

so probability is 3/50

there will be total 10 no. divisible by 5.

so probability is 5/50 which will be 1/10

prime no. less than 20 are 11,13,17 and 19.so probability is 4/50 which is 1/25