Q10 of 53 Page 15

A bag contains blue coloured balls only. Rahul takes out one ball without looking into the bag. What is the probability of his

(i) taking out a green ball?


(ii) taking out a blue ball?

(i) 0 Since there are only blue balls so taking, green balls will be zero.


(ii)1 Since there are only blue balls.


More from this chapter

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8

One card is drawn from a well-shuffled deck of 52 cards. Calculate the probability that the card will

(i) be an ace,


(ii) not be an ace

 9

In a throw of a fair die, find the probability of getting

(i) the number 5


(ii) the number 3 or 4


(iii) a prime number


(iv) a number greater than 4


(v) a number greater than 6


(vi) a number less than 6

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Find the probability that a number selected from the numbers 1 to 25 is not a prime number when each of the given numbers is equally likely to be selected.

 12

A box contains 20 cards, numbered from 1 to 20. A card is drawn from the box at random. Find the probability that the number on the card drawn is (i) even (ii) prime and (iii) multiple of 3