Question

В цистерне было 32 т керосина . в 1 день израсходовали в 1,8 раза больше керосина , чем во второй день. к утру третьего дня в цистерне осталось 12,4 керосина. сколько тонн керосина израсходовали в первый день?

Answer 1

х-в первый день

во второй - 1,8х

х+1,8х=32-12,4

2,8х=19,6

х=19,6:2,8

х=7т- в первый день

7*1,8=12,6т-во второй

Answer 2

Problem Analysis

We are given the following information: - There were initially 32 tons of kerosene in the tank. - The amount of kerosene used on the first day was 1.8 times more than the amount used on the second day. - By the morning of the third day, there were 12.4 tons of kerosene left in the tank.

We need to determine how many tons of kerosene were used on the first day.

Solution

Let's assume that the amount of kerosene used on the second day is x tons. Then, the amount used on the first day would be 1.8x tons.

We can set up the following equation to represent the total amount of kerosene used: 32 - (1.8x + x) = 12.4

Simplifying the equation: 32 - 2.8x = 12.4

Now, we can solve for x to find the amount of kerosene used on the second day.