Question

За 2/3 ч мотоциклист проехал 20 2/5 км.С какой скоростью ехал мотоциклист?За 2/3 ч мотоциклист проехал 20 2/5 км.С какой скоростью ехал мотоциклист?

Answer 1

20 2/5: 2/3=102/5 *3/2=51/5*3/1=153/5=30 5/6км/ч- скорость мотоциклиста

Answer 2

Calculation of the Motorcycle's Speed

To calculate the speed at which the motorcyclist was traveling, we need to divide the distance traveled by the time taken.

The given information states that the motorcyclist traveled 20 2/5 km in 2/3 hours.

To find the speed, we divide the distance by the time:

Speed = Distance / Time

Substituting the given values:

Speed = 20 2/5 km / 2/3 hours

To simplify the calculation, we can convert the mixed number (20 2/5) to an improper fraction.

20 2/5 = (20 * 5 + 2) / 5 = 102/5

Now we can substitute the values into the formula:

Speed = 102/5 km / 2/3 hours

To divide fractions, we multiply the first fraction by the reciprocal of the second fraction:

Speed = (102/5 km) * (3/2 hours)

Multiplying the numerators and denominators:

Speed = (102 * 3) / (5 * 2) km/h

Simplifying the fraction:

Speed = 306/10 km/h

Therefore, the motorcyclist was traveling at a speed of 30.6 km/h.

Answer:

The motorcyclist was traveling at a speed of 30.6 km/h.