Sadhana Bhadoriya

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:-

Ex – 14.1 Que No. 12 Q.12) A game of chance consists of spinning an arrow which comes to rest pointing at one of the numbers 1, 2, 3, 4, 5, 6, 7, 8 (see Fig. 14.5 ), and these are equally likely outcomes. What is the probability that it will point at Solution:-

Ex – 14.1 Que No. 11 Q.11) Gopi buys a fish from a shop for his aquarium. The shopkeeper takes out one fish at random from a tank containing 5 male fish and 8 female fish (see Fig. 14.4). What is the probability that the fish taken out is a male fish? Solution:-

Ex – 14.1 Que No. 10 Q.10) A piggy bank contains hundred 50p coins, fifty 1 coins, twenty 2 coins and ten 5 coins. If it is equally likely that one of the coins will fall out when the bank is turned upside down, what is the probability that the coin (i) will be a