Question

Solve the following Questions:

1. A card is drawn at random from a well shuffled pack of 52 playing cards. Find the probability of

getting neither a red card nor a queen.

2. The probability of selecting a rotten apple randomly from a heap of 900 apples is 0.18.What is the

number of rotten apples in the heap?

3. An integer is chosen at random between 1 and 100. Find the probability that it is :

a. divisible by 8 b. not divisible by 8.

4. A number is selected at random from first 50 natural numbers. Find the probability that it is a

multiple of 3 and 4.

5. Three coins are tossed simultaneously. Find the probability of getting:

a.three heads b. exactly 2 heads c. at least 2 heads.

6. A box contains 100 red cards, 200 yellow cards and 50 blue cards. If a card is drawn at random

from the box, then find the probability of:

a. blue card b. not a yellow card c. neither yellow nor a blue card.

7. Solve examples 1, 2, 3, 4 (textbook page no 298, 299, 300, 301)

8. A coin is tossed twice. Find the probability of getting head both the times.

9. A box contains cards numbered from 1 to 17. If one card is drawn at random from the box, find

the probability that it bears a prime number.

10. Solve examples 5, 6,7,8,9 (textbook page no 302, 303, 304).
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Answer 1

Answer:

1, is the answer ....i used formula p(a)+p(b)-p(aintersection b)