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A bag contains black and white balls, such that the probability of picking a black ball is 4/7. If the probability of picking two black balls without re...
One summer peter visits 4 villages (A, B, C and D) in a random order. Find the probability that he visits (i) A before B (ii) A before B and B before C ...
A question is given to Saket, Ankush and Prem. Probability that Saket, Ankush and Prem can solve the question is 1/3, 2/5 and 1/2. Find the probability ...
Two hats are picked at random, what is the probability that one is blue and one is 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 ...
In a Polly bag, the distribution of red, white, and yellow rubber bands is in the ratio 7:3:8. Suppose the yellow rubber bands were reduced by 35 and th...
Out of 5 white marbles, 4 blue marbles, in how many ways we select one or more marbles?
A bag contains 13 white and some black balls. If the probability of drawing a black ball from the bag is twice that of drawing a white ball, find the nu...
34 pens are there in a box where 10 are red pens, ‘p’ are blue pens and remaining are black pens. If a pen is picked, the probability of getting blu...
Out of three girls and five boys, five children are to be randomly selected for a dance programme. What is the probability that all the selected childre...
