Question

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

Answer 1

осталось на второй станции х

осталось на первой станции 2х

осталось на двух станциях 177-(11,7+7,5)=157,8 ц

составим уравнение

2х+х=157,8

3х=157,8

х=157,8:3

х=52,6 ц осталось на второй станции

52,6*2=105,2 ц осталось на первой станции

52,6+7,5=60,1 ц было на второй станции

105,2+11,7=116,9 ц было на первой станции

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Answer 2

пусть х(ц) бензина осталось на второй станции;

тогда 2х(ц) бензина осталось на первой станции;

всего бензина осталось: 177-11,7-7,5=42(ц);

значит: х+2х=42; х=14(ц).

Ответ:14 ц осталось на второй станции; 28 ц осталось на первой станции.

Answer 3

Problem Analysis

We are given that there were a total of 177 centners (ц) of gasoline on two gas stations. After selling 11.7 ц on one station and 7.5 ц on the other, the amount of gasoline left on the first station was twice as much as on the second station. We need to find the initial amount of gasoline on each station.

Solution

Let's assume that the initial amount of gasoline on the first station is x ц. Since the amount of gasoline left on the first station is twice as much as on the second station, the amount of gasoline left on the second station is x/2 ц.

According to the given information, the total amount of gasoline on both stations is 177 ц. Therefore, we can write the equation:

x + x/2 = 177

To solve this equation, we can multiply both sides by 2 to eliminate the fraction:

2x + x = 354

Combining like terms:

3x = 354

Dividing both sides by 3:

x = 118

So, the initial amount of gasoline on the first station was 118 ц, and the initial amount of gasoline on the second station was 118/2 = 59 ц.

Therefore, the initial amount of gasoline on each station was 118 ц and 59 ц, respectively.

Answer

The initial amount of gasoline on the first station was 118 ц, and the initial amount of gasoline on the second station was 59 ц.