Question

Турист прошёл в первый день 12км, а во второй день 20км и дел все время с одинаковой скоростью. Во второй день он шел на 2 часа больше, чем в первый. Сколько часов пешеход дел в каждый из этих дней?

Answer 1

1) 20 - 12 = 8 км - разница между расстояниями, пройденными в 1 и 2 день
2) 8 : 2 = 4 км/ч - скорость пешехода
3) 12 : 4 = 3 ч - шел пешеход в 1 день
4) 20 : 4 = 5 ч - шел пешеход во 2 день

Answer 2

1) 20-12=8 км прошёл во 2 день больше
2) 8:2=4 км/ч скорость туриста
3) 12:4=3 часа шёл турист в первый день
4) 20:4=5 часов шел турист во второй день

Answer 3

Calculation of Walking Hours for Each Day

To calculate the number of hours the pedestrian walked on each day, we need to consider the distance covered and the speed at which they walked.

Let's denote the distance covered on the first day as D1 (12 km) and the distance covered on the second day as D2 (20 km). We also know that the pedestrian walked for 2 hours longer on the second day compared to the first day.

Let's assume the pedestrian walked at a constant speed of S km/h on both days.

To find the walking time on each day, we can use the formula:

Time = Distance / Speed

On the first day: Time1 = D1 / S

On the second day: Time2 = D2 / S

We also know that the pedestrian walked for 2 hours longer on the second day compared to the first day: Time2 = Time1 + 2

Now, let's solve these equations to find the walking time on each day.

From equation (3), we can substitute Time1 in equation (2) to get: D2 / S = (D1 / S) + 2

Simplifying the equation, we have: D2 = D1 + 2S

From equation (1), we can substitute D2 in equation (4) to get: (D1 + 2S) / S = (D1 / S) + 2

Simplifying the equation, we have: 2S = D1

Now, we can substitute the value of D1 in equation (1) to find the value of S: 2S = 12 S = 6

Therefore, the pedestrian walked at a speed of 6 km/h.

Now, we can substitute the value of S in equation (1) to find the walking time on the first day: Time1 = D1 / S = 12 / 6 = 2 hours

And we can substitute the value of S in equation (2) to find the walking time on the second day: Time2 = D2 / S = 20 / 6 = 3.33 hours

So, the pedestrian walked for 2 hours on the first day and 3.33 hours (approximately) on the second day.

Therefore, the pedestrian walked for 2 hours on the first day and approximately 3.33 hours on the second day.