Sadhana Bhadoriya

Ex – 14.1 Que No. 22 Q.22) Refer to Example 13. Solution:-

Ex – 14.1 Que No. 21 Q.21) A lot consists of 144 ball pens of which 20 are defective and the others are good. Nuri will buy a pen if it is good, but will not buy if it is defective. The shopkeeper draws one pen at random and gives it to her. What is

Ex – 14.1 Que No. 20 Q.20) Suppose you drop a die at random on the rectangular region shown in Fig. 14.6. What is the probability that it will land inside the circle with diameter 1m? Solution:-

Ex – 14.1 Que No. 19 Q.19) A child has a die whose six faces show the letters as given below: The die is thrown once. What is the probability of getting (i) A? (ii) D? Solution:-

Ex – 14.1 Que No. 18 Q.18) A box contains 90 discs which are numbered from 1 to 90. If one disc is drawn at random from the box, find the probability that it bears Solution:-

Ex – 14.1 Que No. 17 Q.17) Solution:-

Ex – 14.1 Que No. 16 Q.16) . 12 defective pens are accidentally mixed with 132 good ones. It is not possible to just look at a pen and tell whether or not it is defective. One pen is taken out at random from this lot. Determine the probability that the pen taken out is

Ex – 14.1 Que No. 15 Q.15) Five cards—the ten, jack, queen, king and ace of diamonds, are well-shuffled with theirface downwards. One card is then picked up at random. Solution:-

Ex – 14.1 Que No. 14 Q.1) One card is drawn from a well-shuffled deck of 52 cards. Find the probability of getting Solution:-

Ex – 14.1 Que No. 13 Q.13) A die is thrown once. Find the probability of getting Solution:-