Consider we need to choose 5 balls out of three different color buckets. Each bucket has all balls of same color as bucket. Assume each bucket has infinite balls.
In how many ways balls can be chosen ?
Thanks in advance !
Each ball can be chosen in 3 different ways and choose of one ball will not effect other ball. So number of ways would be 3*3*3*3*3 i.e. 243.
In a hotel, rooms are numbered from 101 to 550. A room is chosen at random. What is the probability that room number starts with 1, 2 or 3 and ends with 4, 5 or 6 ?
Can you tell us whats the probability of choosing correct answer in this random manner.
1) 1/4 2) 1/2 3) 1 4) 1/4
A bag contain 5 red balls and some blue balls. If the probability of drawing a blue ball from the bag is four time that of a red ball, then find the number of blue balls in the bag.
A bag contains 4 yellow, 5 red, 3 green and 4 black balls. If 4 balls are drawn randomly without replacement, what is the probability that the balls drawn contains balls of different colors?
A bag contains 5 white, 4 red and 3 black balls. A ball is drawn at random from the bag, what is the probability that it is not black?
