Question

Моторная лодка 1800 м по течению реки модет проехать за 12 минут ,а против течения за 20 минут.за сколько минут это расстояяние моторная лодка проехала бы по озеру?

Answer 1

1)20-12=8
2)8:2=4
3)12+4=16
4)1800:16=112,5(с половиной)
112,5=1ч52м30с

Answer 2

Calculation of Boat Speed

To determine the speed of the motorboat, we can use the formula: speed = distance / time.

Let's denote the speed of the motorboat as v, the distance traveled as d, and the time taken as t.

According to the given information: - When traveling with the current, the motorboat takes 12 minutes to cover a distance of 1800 meters. - When traveling against the current, the motorboat takes 20 minutes to cover the same distance.

Using the formula, we can set up the following equations:

1. When traveling with the current: - v = d / t - v = 1800 / 12 (distance is given as 1800 meters and time is given as 12 minutes)

2. When traveling against the current: - v = d / t - v = 1800 / 20 (distance is given as 1800 meters and time is given as 20 minutes)

Let's calculate the speed of the motorboat in both scenarios.