Question

автомобиль расходует 9 литров бензина на 100 километров пути. Цена бензина с 1 августа повысилась на 20% и стала 30 рублей. Сколько рублей потратил автомобилист на путь длиной 800 км 31 июля ?

Answer 1

30*100/120=25 (цена за бензин 31 июля)

9*8*25=1800 (потратит автомобилист)

Answer 2

Calculating the Cost of the Trip

To calculate the cost of the trip, we can follow these steps:

1. Calculate the New Fuel Consumption: Since the price of gasoline increased by 20%, the new price is 30 rubles. We need to calculate the new fuel consumption based on this price increase.

The new fuel consumption can be calculated using the following formula: New fuel consumption = (old fuel consumption / 100) * (100 + percentage increase)

Given that the car originally consumed 9 liters of gasoline for 100 kilometers, we can calculate the new fuel consumption.

New fuel consumption = (9 / 100) * (100 + 20) = 9 * 1.2 = 10.8 liters for 100 kilometers.

2. Calculate the Total Cost: With the new fuel consumption, we can calculate the total cost for the 800-kilometer trip.

Total cost = (new fuel consumption / 100) * distance * price per liter

Total cost = (10.8 / 100) * 800 * 30 = 8.64 * 30 = 259.2 rubles.

Therefore, the cost for the 800-kilometer trip on July 31st would be 259.2 rubles.

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