A class has 28 students, including 8 girls and the …… boys. If …… girls leave the class, the probability of randomly selecting a boy becomes 5/6...
A is trying to break a bulb by throwing balls at it. If he hits the bulb 4 times in every 11 throws and bulb breaks 3 times out of 7 hits, then find the...
If the letters of the word PLAYERS be arranged at random, what is the probability that there are exactly five letters between P and S?
- A coin is tossed 2 times. ‘A’ wins the game if at least one tail appears. Otherwise, ‘B’ wins. What is the probability that ‘A’ wins?
In how many ways can the letters of the word "EXAMPLE" be arranged, and what is the probability that all the vowels in these arrangements always appear ...
A bag contains 35 white and some black balls. If the probability of drawing a black ball from the bag is 1.8 times that of drawing a white ball, find th...
A box has ‘x’ blue balls and 9 yellow balls. If the probability of selecting a blue ball is 3/7, then find the probability of drawing two balls of d...
From a bag containing 12 white and 15 yellow ribbons, find the probability of picking 2 ribbons of each type at random.
- 12 defective chargers got mixed with 108 pieces of non-defective chargers. A customer comes and buys one charger. Find the probability that the charger bou...
If the letters of the word PARAM are arranged at random, what is the probability that all vowels will come together?
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