Question

. Cards numbered 1 to 30 are put in a bag. A card is drawn at random from this bag. Find
the probability that the number on the drawn card is
(i) not divisible by 3 (ii) a prime number greater than 7
(iii) not a perfect square number.
​

Answer 1

Answer:

1. 2/3
2. 1/5
3. 5/6

Step-by-step explanation:

1. There are 20 cards not divisible by 3: 20/30 = 2/3.
2. There are 6 prime numbers greater than 7 & between 1-30: 6/30 = 1/5
3. There are 25 not a perfect square number : 25/30 = 5/6