Question

Крестьянин привез на рынок 3,6 т картофеля. До обеда он продал 0,3 части, после обеда-4/5 оставшейся части картофеля. Сколько картофеля осталось?

Answer 1

1) 3,6*0,3=1,08  продал до обеда
2)3,6 -1, 08=2,52 осталось к обеду
3)2,52 *4/5=2,016 
4)2.52 -2,016=0,504

Answer 2

Problem Analysis

A peasant brought 3.6 tons of potatoes to the market. Before lunch, he sold 0.3 parts of the potatoes, and after lunch, he sold 4/5 of the remaining part. We need to determine how much potato is left.

Solution

To solve this problem, we need to calculate the amount of potatoes sold before lunch and after lunch, and then subtract the total amount sold from the initial amount to find the remaining potatoes.

1. Calculate the amount of potatoes sold before lunch: - The peasant sold 0.3 parts of the potatoes. - We can calculate this by multiplying the total amount of potatoes by 0.3: 3.6 tons * 0.3 = 1.08 tons.

2. Calculate the amount of potatoes sold after lunch: - The peasant sold 4/5 of the remaining part of the potatoes. - To find the remaining part of the potatoes, we subtract the amount sold before lunch from the initial amount: 3.6 tons - 1.08 tons = 2.52 tons. - We can calculate the amount sold after lunch by multiplying the remaining part by 4/5: 2.52 tons * 4/5 = 2.016 tons.

3. Calculate the amount of potatoes remaining: - To find the amount of potatoes remaining, we subtract the total amount sold from the initial amount: 3.6 tons - 1.08 tons - 2.016 tons = 0.504 tons.

Answer

The peasant has 0.504 tons of potatoes remaining.