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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 jar contains 10 oranges, 4 pink, 7 black, and 5 purple marbles. If a single marble is chosen at random from the jar, what is the probability that it i...
The probability of selecting a rotten apple randomly from a heap of 150 apples is 0.28. What is the number of rotten apples in the heap?
A bag contains cards numbered between 33 and 102. If one card is drawn from the bag, the probability that the number on the drawn card is a perfect squa...
A bag contains 5 green gems and 7 orange gems. If 2 balls are drawn random, then what is the probability that at least 1 gem is orange.
A box contains 5 blue jellies, some red jelly and rest yellow jelly. The probability of picking a red ball at random is 3/10, while the probability of p...
A is trying to break a bulb by throwing balls at it. If he hits the bulb 3 times in every 10 throws and bulb breaks 3 times out of 13 hits, then find th...
In a class, there are 16 boys and 24 girls. One of them is called out by an enroll number. What is the probability that the one called is a girl?
In a box there are 3 red, 6 blue, and 9 yellow cards. One card is picked up randomly. What is the probability that it is neither red nor yellow?
A bag contains 13 white and some black balls. If the probability of drawing a black ball from the bag is 3 times that of drawing a white ball, find the ...
