Question

Теплоход и катер отошли от двух пристаней одновременно навстречу друг другу.скорость теплохода 30км/ч,скорость катера 25км/ч.Через сколько суда встретятся,если расстояние между пристанями равно 330км?

Answer 1

Найдём общую скорость:
1)30 + 25 = 55 (км/ч)
Найдём время:
2)330 ÷ 55 = 6 (ч)
Ответ: Катер и теплоход встретятся через 6 часов.

Answer 2

V1- 30 км/ч

V2- 20 км/ч

S- 150км

t-?

1) 30+20=50(км/ч)- общая скорость

s=v*t

2) 150/50=3(ч.)

Ответ: t= 3 часа.

Answer 3

Problem Analysis

We are given the following information: - The speed of the ship (teplod) is 30 km/h. - The speed of the boat (kater) is 25 km/h. - The distance between the two piers is 330 km.

We need to find out how long it will take for the ship and the boat to meet each other.

Solution

To solve this problem, we can use the formula: time = distance / speed.

Let's calculate the time it will take for the ship and the boat to meet each other.

The ship and the boat are moving towards each other, so we can add their speeds to find their combined speed.

The combined speed of the ship and the boat is 30 km/h + 25 km/h = 55 km/h.

Now, we can use the formula to find the time it will take for the ship and the boat to meet each other:

time = distance / speed

Substituting the values, we get:

time = 330 km / 55 km/h

Calculating this, we find:

time = 6 hours

Therefore, the ship and the boat will meet each other after 6 hours.

Answer

The ship and the boat will meet each other after 6 hours.