Question

Моторная лодка двигаясь со скоростью 15 километров час за 1 день прошла 210 км во второй день он увеличил скорость на 3 километров час а лодка прошла 306 км в час. сколько часов моторная лодка была в пути

Answer 1

1) 210 : 15 = 14 (часов) - в 1-ый день
2) 306 : ( 15 + 3) = 306 : 18 = 17 (часов) - во 2-ой день
3) 14 + 17 = 31 (час) (ответ)

Answer 2

Calculation of the Travel Time of the Motorboat

To calculate the travel time of the motorboat, we need to determine the speed of the motorboat on the second day.

On the first day, the motorboat traveled 210 km at a speed of 15 km/h.

On the second day, the motorboat increased its speed by 3 km/h and traveled 306 km.

Let's calculate the travel time for each day and then add them together to find the total travel time.

First Day: - Distance traveled: 210 km - Speed: 15 km/h

To calculate the travel time, we can use the formula: time = distance / speed.

The travel time on the first day is therefore: 210 km / 15 km/h = 14 hours.

Second Day: - Distance traveled: 306 km - Speed: 15 km/h + 3 km/h = 18 km/h (increased speed)

The travel time on the second day is: 306 km / 18 km/h = 17 hours.

Now, let's add the travel times of both days to find the total travel time:

Total Travel Time: - First day: 14 hours - Second day: 17 hours

The total travel time of the motorboat is: 14 hours + 17 hours = 31 hours.

Therefore, the motorboat was in travel for 31 hours.

Please note that the calculations are based on the given information and assumptions made.