Question

Помогите решит задачу. В бочке было 380 литров воды . Сначала из неё взяли 70 литров затем в 3 раза больше. Сколько воды осталось в бочке ?

Answer 1

380-70-70•3=100 литров

Answer 2

70+(3*70)=280 л воды взяли                                                                                       380-280=100 л воды осталось в бочке

Answer 3

Problem Analysis

To solve this problem, we need to calculate the amount of water left in the barrel after 70 liters were taken out and then three times as much water was added.

Solution

1. Initial amount of water in the barrel: 380 liters. 2. Amount of water taken out initially: 70 liters. 3. Amount of water added: 3 times the amount taken out initially, i.e., 3 * 70 = 210 liters. 4. Total amount of water added: 70 + 210 = 280 liters.

To find the amount of water left in the barrel, we subtract the total amount of water added from the initial amount of water.

Calculation

Amount of water left in the barrel: 380 - 280 = 100 liters.

So, 100 liters of water are left in the barrel.