Question

1
2
3. A car travels first 100 km in 2-5 hours and next 30 km in 1/2 hour. What is its average speed?




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Answer 1

Answer:total distance=130km

Total time= 3 hrs

Av.speed=130/3 km/hr

Explanation:

Answer 2

Answer :

Speed = Distance / Time

Time = 5/2 hour

= 2.5 hour

First speed of car = Distance / Time

= 100/2.5 Km

= 40 Km / Hr .

Second Speed of car = 30 Km

Time = 1/2 Hr = 0.5 Hr

Speed = D / T

= 30/0.5

= 60 Km / Hr

Average Speed of car = 40+60 Km/ hr

= 100 Km / Hr

=100/2 Km/ Hr

= 50 Km Hr

Average Speed of Car = 50 Km/ Hr .

Hope it helps uh !!!