Question

В коробке 15 белых и 25 красных шаров. Найти вероятность вытянуть наугад красный шар

Answer 1

15 + 25 = 40
40/25=100/x
Находим x, который равен:

62,5% Ну, или пять к восьми — 5/8. А ещё лучше 62,5/100=0,625

Answer 2

Problem Statement

В коробке есть 15 белых и 25 красных шаров. Найдите вероятность вытянуть наугад красный шар.

Solution

To find the probability of drawing a red ball at random from the box, we need to calculate the ratio of the number of red balls to the total number of balls in the box.

The total number of balls in the box is the sum of the number of white balls and the number of red balls, which is 15 + 25 = 40.

The number of red balls is 25.

Therefore, the probability of drawing a red ball at random can be calculated as:

Probability of drawing a red ball = (Number of red balls) / (Total number of balls)

Probability of drawing a red ball = 25 / 40

Simplifying the fraction, we get:

Probability of drawing a red ball = 5 / 8

So, the probability of drawing a red ball at random from the box is 5/8.