Question

Shivam sees a game in a fair. He is keenly interested to play it. He

asks the rules of game form the owner. Owner says that you will

move this spinner first, ifit stops on a prime number, then you are

allowed to pick a marble from a bag and bag has only white and black

marbles. Prizes are given when a white marble is picked randomly.





Based on the above information, answer the following questions:



(i) What is the probability that Shivam will not be allowed to

pick a marble from the bag?

(a) 3

8

(b) 5

8

(c) 1

2

(d) 1

(ii) What is the probability that Shivam will be allowed to pick a

marble from the bag?

(a) 3

8

(b) 1

2

(c) 5

8

(d) 3

7

(iii) The probability that Shivam will pick a black marble from the

bag is:

(a) 7

12

(b) 5

12

(c) 1

2

(d) 2

3

(iv) The probability that Shivam will get a prize is:

a) 3

5

(b) 3

4

(c) 5

12

(d) 7

12

(v) The probability that Shivam will pick a red marble from the

bag is:

a) 1 (b) 0 (c) 5

12

(d) 7

12​

Answer 1

Answer:

If the no. on the roulette are 8.

$i)(b) \: \frac{5}{8}$

$ii)(a) \frac{3}{8}$

$iii)(c) \frac{1}{2}$

$iv) \frac{1}{2} \times \frac{3}{8} = \frac{3}{16}$

$v)(b)0$

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