If the total ages of A and B is 8 years more than the total age of B and C. C is how many years younger than A?

Let the age of A, B and C be x, y and z respectively. Then, according to question, => (x + y) – (y + z) = 8 =>x + y – y - z = 8 =>x - z = 8 Thus, C is 8 years younger than A.

A bag contains 10 black and 12 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?

...The probability of selecting a rotten egg randomly from a basket of 600 eggs is 0.14. What is the number of rotten eggs in the basket?

A basket contains 3 yellow, 5 purple and 3 red flowers. If 3 flowers are drawn at random, what is the probability that at least two are of same colour?

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