Question

На 2 заправках было 177ц. бензина. После того как на одной станции было продано 11,7ц , а на другой-7,5ц, бензина на первой станции осталось в 2 раза больше, чем на второй. Какое количество бензина было на каждой заправке?

Answer 1

1) 11,7 + 7,5 = 19,2 ц продано с двух заправок
2) 177 - 19,2 = 157,8 ц осталось после продажи 
3) 1 + 2 = 3 части в 157,8 ц
4) 157,8 : 3 = 52,6 ц осталось на второй
5) 52,6 * 2 = 105,2 ц осталось на первой
6) 52,6 + 7,5 = 60,1 ц было первоначально на второй
7) 105,2 + 11,7 = 116,9 ц было первоначально на первой

Answer 2

Problem Analysis

We are given that there were 177 units of gasoline at two gas stations combined. After selling 11.7 units of gasoline at one station and 7.5 units at the other station, the amount of gasoline remaining at the first station was twice the amount remaining at the second station. We need to determine the amount of gasoline at each station.

Solution

Let's assume that the amount of gasoline at the first station is x units and the amount of gasoline at the second station is y units.

From the given information, we can form the following equations: 1. x + y = 177 (the total amount of gasoline at both stations is 177 units) 2. x - 11.7 = 2(y - 7.5) (the amount of gasoline remaining at the first station is twice the amount remaining at the second station after selling 11.7 units at the first station and 7.5 units at the second station)

We can solve these equations simultaneously to find the values of x and y.

Substituting the value of x from equation 2 into equation 1, we get: (2(y - 7.5)) + y = 177 2y - 15 + y = 177 3y - 15 = 177 3y = 192 y = 64

Substituting the value of y into equation 1, we get: x + 64 = 177 x = 177 - 64 x = 113

Therefore, there were 113 units of gasoline at the first station and 64 units of gasoline at the second station.

Answer

The amount of gasoline at each station was as follows: - First station: 113 units of gasoline - Second station: 64 units of gasoline