Question

Две трубы могут наполнить бассейн за 2 часа.Если заполнять будет только одна труба то она заполнит бассейн за 3 часа . За сколько часов заполнит бассейн вторая труба.

Answer 1

Весь бассейн - 1
1/2 бассейна в час вместе
1/3 бассейна в час одна первая
1/2-1/3=3/6-2/6=1/6 бассейна в час одна вторая
1:1/6= 6 часов - заполнит бассейн одна вторая труба

Answer 2

Problem Analysis

We are given that two pipes can fill a pool in 2 hours, and if only one pipe is used, it takes 3 hours to fill the pool. We need to determine how long it would take for the second pipe to fill the pool on its own.

Solution

Let's assume that the first pipe can fill the pool in x hours. We are given that if only one pipe is used, it takes 3 hours to fill the pool. Therefore, the first pipe can fill 1/3 of the pool in one hour.

We are also given that both pipes together can fill the pool in 2 hours. Therefore, both pipes combined can fill 1/2 of the pool in one hour.

To find the rate at which the second pipe can fill the pool, we subtract the rate of the first pipe from the combined rate of both pipes: 1/2 - 1/3 = 3/6 - 2/6 = 1/6.

This means that the second pipe can fill 1/6 of the pool in one hour. Therefore, it would take the second pipe 6 hours to fill the pool on its own.

Answer

The second pipe would take 6 hours to fill the pool on its own.