Question

папа может почистить 6 кг картофеля за 1 час,а сын за 2 часа.сколько времени им понадобится,чтобы почистить 6 кг картофеля,если они будут чистить его вместе?

Answer 1

1)6:1=6:2

2)6:3=2часа

 

Answer 2

тут все просто:)

6:3=2 (ч.)

Ответ: Вместе они почистят 6кг. картофеля за 2 часа.

Answer 3

Problem Analysis

We are given that the father can clean 6 kg of potatoes in 1 hour, and the son can clean 6 kg of potatoes in 2 hours. We need to determine how long it will take for them to clean 6 kg of potatoes if they work together.

Solution

To solve this problem, we can calculate the combined rate at which the father and son clean potatoes and then use that rate to find the time it takes to clean 6 kg of potatoes.

Let's start by calculating the individual rates at which the father and son clean potatoes. We can use the formula:

Rate = Amount of work / Time

For the father, the rate is 6 kg of potatoes per 1 hour, so his rate is 6 kg/hour.

For the son, the rate is 6 kg of potatoes per 2 hours, so his rate is 3 kg/hour.

To find the combined rate, we can add the individual rates together:

Combined Rate = Father's Rate + Son's Rate

Combined Rate = 6 kg/hour + 3 kg/hour = 9 kg/hour

Now that we have the combined rate, we can use it to find the time it takes to clean 6 kg of potatoes. We can use the formula:

Time = Amount of work / Rate

Substituting the values, we get:

Time = 6 kg / 9 kg/hour = 2/3 hour

Therefore, it will take them 2/3 hour to clean 6 kg of potatoes if they work together.

Answer

If the father and son work together, it will take them 2/3 hour to clean 6 kg of potatoes.