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Start learning 50% faster. Sign in nowIn a box, there are three different colour cubes: blue, green, and orange. The sum of the number of green and blue cubes in the box equals the number of...
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...
A bag contains 18 black and 20 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
A box contains 6 red, 4 blue, 2 green and 4 yellow pens. If four pens are picked at random, what is the probability that one is green, two are blue and ...
In a cricket world cup the probability that India will win the cup is ¼. The Probability of Pakistan winning the cup is 1/5 and Australia winning the c...
Two unbiased dice are rolled. What is the probability that the first die shows a composite number and the second die shows a prime number?
If a coin is tossed 10 times then what is the probability of getting three heads?
If two dice are rolled simultaneously, what is the probability that the sum of the numbers on the two dice is greater than or equal to 10?
A letter is taken out at random from ‘ROORKEE’ and another is taken out from ‘BOOKKEEPER’. The probability that they are the same letter is
A bag contains 3 Green and 9 Red balls. One ball is drawn at random. What is the probability that the ball drawn is Red?