Math SMJ-( 15) Chapter 7: Fractional synthesis is urgent! The process should be complete.

Solution: If you take a horizontal road, the time required is the distance divided by the speed.

t=s/2v=3/2v=9/6v

If there are uphill and downhill,

The total time is the time required to go uphill plus the time required to go downhill.

t = 1/v+2/3v = 2/v = 5/3v = 10/6v

Compare it twice.

The denominator is the same, the bigger the numerator, the bigger the number, so the less time it takes to level the road.

In less time.

10/6v-9/6v= 1/6v