Question

Электропоезд сначала ехал 30мин со скоростью 60км/ч,а затем 1ч30мин со скоростью 40км/ч.какое расстояние проехал электропоезд?

Answer 1

60км/ч * 0.5ч=30км
40км/ч * 1.5ч=60км
30+60=90км

Answer 2

60*0.5ч=30 км проехал за 30 мин                                                                              1ч30=1.5ч    40*1.5=60 км проехал за 1.5 часа                                                         30+60=90 км пути за 2 часа проехал электропоезд

Answer 3

Calculation of Distance Traveled by the Electric Train

To calculate the distance traveled by the electric train, we need to determine the distance covered during each leg of the journey and then sum them up.

Let's break down the journey into two parts:

1. The first leg of the journey lasted 30 minutes and the train traveled at a speed of 60 km/h. To calculate the distance covered during this leg, we can use the formula:

Distance = Speed × Time

Substituting the given values:

Distance1 = 60 km/h × 0.5 h = 30 km

2. The second leg of the journey lasted 1 hour and 30 minutes, or 1.5 hours, and the train traveled at a speed of 40 km/h. Using the same formula:

Distance2 = 40 km/h × 1.5 h = 60 km

Now, we can calculate the total distance traveled by summing up the distances covered during each leg:

Total Distance = Distance1 + Distance2 = 30 km + 60 km = 90 km

Therefore, the electric train traveled a distance of 90 kilometers.