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The correct answer is A
Out of 6 white marbles, 3 blue marbles, in how many ways we select one or more marbles?
A is trying to break a bulb by throwing balls at it. If he hits the bulb 5 times in every 7 throws and bulb breaks 3 times out of 15 hits, then find the...
A bag contains 14 black and 16 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
...Which of the following cannot be the probability of an event?
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...
A box contains 5 red, 4 blue, and 6 green balls. Two balls are drawn at random. What is the probability that both balls are green?
A bag contains 20 white and some black balls. If the probability of drawing a black ball from the bag is 6.25 times that of drawing a white ball,...
All the sides of a 3-inch solid cube are painted. The cube is then cut into cubes of equal size to 1 inch each. If a cube is chosen at random, what is t...
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...
Two cards are drawn at random from a pack of 52 cards. What is the probability that either both are black or both are queens?