The probability of selecting a rotten apple randomly from a heap of 250 apples is 0.20. What is the number of rotten apples in the heap?
...Two dice are rolled together. Find the probability that the sum of the numbers on the two dice is less than 4.
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...
There are 4 red balls, 5 blue balls and 3 green balls in a jar. 2 balls are drawn at random. Find the probability that both balls are either green or red.
One five letter word is to be formed taking all letters – U, Z, M, O and Q. What is the probability that this formed word will contain all vowels tog...
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 a...
Find the simplified value of the given expression:
18 × 3 ÷ 6 + 24 ÷ 4 of 2 − 60 ÷ 2 of 3 + 18 × 5 ÷ 9.Â
...In a lottery, there are 11 prizes and 30 blanks. A lottery is drawn at random. What is the probability of getting a prize?
From a bag containing 12 white and 15 yellow ribbons, find the probability of picking 2 ribbons of each type at random.
Five squares of a chessboard are chosen at random, the probability that three are of one colour and two of another is
