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A box contains 8 red, 5 green, and 7 blue balls. Two balls are drawn at random without replacement. What is the probability that both balls drawn are of...
A box contains 7 blue and 7 green balls. The probability of drawing three balls of the same colour is
A box contains only three colors of balls- red, green and blue. What is the minimum number of balls that should be picked from the box to ensure that at...
Mohit is a teacher and he teach some students in two (Morning & evening) slots. There are 5 boys and ‘x’ girls in morning slot, while there are ‘x...
A bag contains cards which are numbered from 2 to 90. A card is drawn at random from the bag. Find the probability that the card number is a perfect squ...
Find the probability that a number selected at random from first hundred number is a multiple of 3 or 5?
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...
A bag contains (x + 7) small toys, (x + 12) medium toys, and (x + 17) large toys. The probability of drawing a large toy from the bag is (4/9). Find the...
A bag contains a certain number of fruits of three varieties: apple, orange, and banana. The total number of apples and oranges is 13, which is 5 more t...
