Question

В 8 часов расстояние между 2 катерами ,плывущими навстречу друг другу , было 250 км. Скорости катеров 25 км/ч и 35 км/ч. Встретятся ли они до 12 часов того же дня? Через сколько времени произойдёт встреча?

Answer 1

1) 25+35=60(км\ч) общая скорость катеров

2) 12-8=4(ч)

3)60*4=240(км) проплывут катера за 4 часа, к 12 часам они не встретятся

4)250-240=10(км) останется проплыть

5) 10:60=1\6 (часть часа)= 60мин:6=10(Мин) понадобиться, чтобы проплыть оставшиеся 10 км.

Ответ : катера не встретятся в 12 часов, они встретятся в 12ч 10 мин, т.е встреча произойдет через 10 мин после назначеного срока.

Answer 2

Calculating the Meeting Time for Two Boats

To calculate whether the two boats will meet before 12:00 PM and the time of their meeting, we can use the following approach:

1. Calculate the Time of Meeting: - We can use the formula: Time = Distance / Relative Speed. - The relative speed of the two boats is the sum of their speeds when they are moving towards each other.

2. Determine if They Will Meet Before 12:00 PM: - We will calculate the time of meeting and check if it is before 12:00 PM.

Let's proceed with the calculations.

Calculation

1. Calculate the Time of Meeting: - The relative speed of the two boats is 25 km/h + 35 km/h = 60 km/h. - The distance between the boats is 250 km. - Using the formula Time = Distance / Relative Speed, we get: - Time = 250 km / 60 km/h = 4.17 hours.

2. Determine if They Will Meet Before 12:00 PM: - The current time is 8:00 AM, and we need to find out if the meeting time is before 12:00 PM. - Adding 4.17 hours to the current time: - 8:00 AM + 4.17 hours = 12:10 PM.

Conclusion

The two boats will meet after 12:00 PM, approximately at 12:10 PM on the same day.

I hope this helps! If you have further questions or need additional assistance, feel free to ask.