Question

Из одного поселка одновременно в противоположных направлениях выехали велосипедист и мотоциклист скорость велосипедиста 12 км в час а скорость мотоциклиста в 4 раза больше Через какое время расстояние между ними будет 180 километров

Answer 1

12*4=48 (км/ч)скорость мото
12+48=60(км/ч) скорость отдаления
180:60=3(ч)
ответ : через 3часа

Answer 2

Calculating the Time to Reach 180 Kilometers Distance

To calculate the time it takes for the distance between the cyclist and the motorcyclist to reach 180 kilometers, we can use the formula:

time = distance / relative speed

The relative speed is the combined speed of the two vehicles, taking into account their opposite directions.

Given: - Speed of the cyclist = 12 km/h - Speed of the motorcyclist = 4 times the speed of the cyclist = 12 km/h * 4 = 48 km/h - Distance to be covered = 180 kilometers

Calculating the Relative Speed

The relative speed of the cyclist and the motorcyclist can be calculated as the sum of their speeds, as they are moving in opposite directions.

Relative speed = Speed of cyclist + Speed of motorcyclist

Relative speed = 12 km/h + 48 km/h = 60 km/h

Calculating the Time

Using the formula time = distance / relative speed, we can calculate the time it takes for the distance between them to reach 180 kilometers.

time = 180 km / 60 km/h = 3 hours

So, it will take 3 hours for the distance between the cyclist and the motorcyclist to reach 180 kilometers.