Question

Теплоход 3 часа шел по озеру со скоростью 23 км ч, а потом 4 ч по реке. Сколько километров прошел теплоход за эти 7 часов, если по реке он шел на 3 километра в час быстрее, чем по озеру

Answer 1

1 вариант
23+3=26(км/ч)-по речке;
23*3=69(км)-озеро;
26*4=104(км)-по речке;
69+104=173(км)-всего.
Ответ:173 км всего.

Answer 2

23*3=69 км - по озеру
23+3=26 км/ч - скорость по реке
26*4=104 км - по реке
69+104=173 км - весь путь
Ответ: 173 км.

Answer 3

Calculation of Distance Traveled by the Ship

To calculate the distance traveled by the ship, we need to determine the distance covered on the lake and the distance covered on the river.

Given: - The ship traveled for 3 hours on the lake at a speed of 23 km/h. - The ship then traveled for 4 hours on the river at a speed 3 km/h faster than its speed on the lake.

Let's calculate the distance covered on the lake and the river separately:

Distance covered on the lake: - Time = 3 hours - Speed = 23 km/h

Using the formula: Distance = Speed × Time, we can calculate the distance covered on the lake: Distance on the lake = 23 km/h × 3 hours = 69 km

Distance covered on the river: - Time = 4 hours - Speed = 23 km/h + 3 km/h (3 km/h faster than the lake speed)

Using the formula: Distance = Speed × Time, we can calculate the distance covered on the river: Distance on the river = (23 km/h + 3 km/h) × 4 hours = 26 km/h × 4 hours = 104 km

Therefore, the ship traveled a total distance of 69 km on the lake and 104 km on the river, resulting in a total distance of 173 km during the 7-hour journey.