Question

A cover 70km in 3hours and 120 km in two hours. find the average distance cover by car in one hour​

Answer 1

In the first trip The car travels 70 km in 3 hours so in 1 hour it will travel =>

3 hrs..... 70 km

1 hr..... 70/3 km

Now

In the second trip The car travels 120 km in 2 hours so in 1 hour it will travel =>

2hrs..... 120 km

1 hr..... 120/2 = 60 km

Now,

Average distance travelled in 1 hour = (distance travelled by the car in first trip + distance travelled by the car in second trip)/2

Average distance = {70/3 + 60} / 2

= {(70 + 180)/3}/2

= (250/3)/2

= 250 / 3 × 2

= 125/3

= 41.6667 km in hours