Q14 of 25 Page 15

Suppose you drop a die at random on the rectangular region shown in Fig. 15.6. What is the probability that it will land inside the circle with diameter 1m?

Concept Used:



Area of rectangle = length × breadth


Area of circle = πr2



Explanation:


Area of rectangle = 3m × 4m = 12m2


Area of circle


Area of circle




More from this chapter

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12

One card is drawn from a well-shuffled deck of 52 cards. Find the probability of getting

(i) A king of red colour


(ii) A face card


(iii) A red face card


(iv) The jack of hearts


(v) A spade


(vi) The queen of diamonds

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A bag contains some red balls and some white balls. The probability of drawing a red ball is 1/4, and the total number of balls is 20. Find the number of red balls and white balls.

 15

A number is selected at random from first 50 natural numbers. Find the probability that it is a multiple of 3 and 4.

 16

Three coins are tossed together. Find the probability of getting:

(i) exactly two heads


(ii) at most two heads


(iii) at least one head and one tail.


(iv) no tails