1.

a car travels with speed 30 km/h for 30 min and then with speed 40 km/h for 1 h. find: a)total distance travelled by the car b)the total time of travel,and c) the average speed of car

Answer»

In 30 MIN the car travelled 15km. And the LAST 1 hour it travelled 40 km. so it TOTALLY travelled (40+15=55) 55KM



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