Question 1: A car travels from A to B at a speed of 40 km/h in 3 hours and 30 minutes. How long does it take for a car to travel from A to B at a speed of 35 km/h?

Let the time it take the car to travel A to B with a speed of 35 km/h as x (x>0) (hour)

Since the distance traveled is constant, speed and time are inversely proportional.

According to the output, we have 40.3,5=35.x⇒35x=140⇒x=4 hours.

So the required time is 4 hours.

The answer to choose is: GET