Question

Плавец скорость которого в стоячей воде 50м/мин плыл 12 мин против течения реки, и 15 мин по течению.Какое расстояние он проплыл если скорость течения реки 10м/мин

Answer 1

(50-10)*12= 480 метров по течению
(50+10)*15= 900 метров против течения
900+480=1380 метров всего проплыл пловец

Ответ 1380

Answer 2

Calculation of the Distance Swam

To calculate the distance swam by the swimmer, we need to consider the swimmer's speed and the time spent swimming against and with the current of the river.

Given: - Speed of the swimmer in still water: 50 m/min - Time spent swimming against the current: 12 min - Time spent swimming with the current: 15 min - Speed of the river's current: 10 m/min

To calculate the distance swam against the current, we can use the formula:

Distance = Speed x Time

Using this formula, the distance swam against the current can be calculated as:

Distance against current = Speed of the swimmer x Time against current

Substituting the given values:

Distance against current = 50 m/min x 12 min = 600 meters

Similarly, to calculate the distance swam with the current, we can use the same formula:

Distance with current = Speed x Time

Distance with current = Speed of the swimmer x Time with current

Substituting the given values:

Distance with current = 50 m/min x 15 min = 750 meters

Therefore, the total distance swam by the swimmer is the sum of the distances swam against and with the current:

Total distance swam = Distance against current + Distance with current

Total distance swam = 600 meters + 750 meters = 1350 meters

So, the swimmer swam a total distance of 1350 meters.