Question

7
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
drawn card is (i) an odd number, (ii) a perfect square number,
(iii) divisible by 5, (iv) a prime number less than 20. [CBSE 20141​

Answer 1

Step-by-step explanation:

total possible outcomes= 50

(i) odd numbers= 11,13,15,17,19....,59

total= 25

probability= 1/2

(ii) perfect square= 16,25,36,49

probability= 4/50=2/25

(iii) divisible by 5 = 15,20,25,30,35,40,45,50,55,60

total=10

probability=10/50=1/5

(iv) a prime number less than 20= 11,13,17,19

probability=4/50=2/25

hope it helps u :)