Question

Клоун положил в ящик 3красных,3желтых и 3 синих мячика.Сколько мячиков он должен достать из ящика,чтобы хотябы один из них был синий?3,6,7

Answer 1

Конечно 7, вероятность того, что сто процентов будет синий)))

Answer 2

Problem:

A clown has placed 3 red, 3 yellow, and 3 blue balls in a box. How many balls does he need to take out of the box to ensure that at least one of them is blue?

Solution:

To ensure that at least one ball is blue, the clown needs to take out 7 balls from the box.

Explanation: - The clown has a total of 9 balls in the box: 3 red, 3 yellow, and 3 blue. - If the clown takes out 6 balls, it is possible that all of them are red or yellow, and there may not be any blue balls among them. - However, if the clown takes out 7 balls, even in the worst-case scenario, where the first 6 balls are all red or yellow, the 7th ball must be blue, ensuring that at least one ball is blue.

Therefore, the clown needs to take out 7 balls from the box to ensure that at least one of them is blue.