Question

Два катера плывут навстречу друг к другу скорость 1 катера 18 км /с . скорость 2 катера на 6 км больше. сейчас между ними 168 на каком растоянии они будут через 3 часа ?через сколько они встретятся ?

Answer 1

Отвечаю:
1. Общая скорость двух катеров - 18 + (18+6) = 42 км/час.
2. За з часа они пройдут 42*3 = 126 км.
3. между ними на этот момент будет 168 -126 = 42.
встретятся они 168/42 = 4 часа

Answer 2

Calculating the Distance Between Two Boats

Two boats are traveling towards each other. The speed of the first boat is 18 km/s, and the speed of the second boat is 6 km/s faster than the first. The current distance between them is 168 km. We need to find the distance between them after 3 hours and the time it takes for them to meet.

To calculate the distance between the boats after 3 hours and the time it takes for them to meet, we can use the following steps:

1. Calculate the Speed of the Second Boat: - The speed of the second boat is 18 km/s + 6 km/s = 24 km/s.

2. Calculate the Total Distance Traveled After 3 Hours: - The first boat travels 18 km/s * 3 hours = 54 km. - The second boat travels 24 km/s * 3 hours = 72 km.

3. Calculate the Remaining Distance Between the Boats After 3 Hours: - The remaining distance between the boats after 3 hours is 168 km - (54 km + 72 km) = 42 km.

4. Calculate the Time it Takes for the Boats to Meet: - The time it takes for the boats to meet can be calculated using the formula: time = distance / (speed1 + speed2). - Substituting the values, time = 168 km / (18 km/s + 24 km/s) = 168 km / 42 km/s = 4 hours.

Results

- Distance Between the Boats After 3 Hours: 42 km - Time it Takes for the Boats to Meet: 4 hours