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Stopping time = (100 – 80)/120 = 20/100 =1/5 hrs = 12 min
Two players, A and B, play a tennis match. It is known that the probability of A winning the match is 0.65. What is the probability of B winning the mat...
Out of 6 white marbles, 3 blue marbles, in how many ways we select one or more marbles?
A bag contains 4 white balls, 5pink balls and 3 black balls. 2 balls are drawn randomly. What is the probability that there are no black balls?
what is the probability that at least one of them narrates an incident truthfully.
A bag contains 5 red balls, 7 blue balls, and 8 green balls. Two balls are drawn at random. What is the probability that both balls drawn are of the sam...
A bag contains 5 black balls,“a” white balls and “b” purple balls. If one ball taken out from the bag, then probability of being it white is 2/7...
In a container, there are (x + 4) red balls, ‘x’ blue balls, and (x + 5) black balls. If the probability of picking two blue balls at random is (1/3...
15 rotten bananas are accidentally mixed with 115 good ones. It is not possible to just look at a banana and tell whether or not it is rotten. One banan...
The probability of selecting a rotten apple randomly from a heap of 100 apples is 0.20. What is the number of rotten apples in the heap?
...A coin is tossed successively three times. Find the probability of getting exactly one tail or two tails?
