Question

In how many hours would they be 800 km apart?

Answer 1

The two cars (a and b) will be 800 km apart after 10 hours.

What is the average speed of a car?

The average speed of a car is the total distance traveled by a car within a specific period of covering such distance.

From the given information:

• If the speed of car A (v_a) = 30 km/hr; and
• The speed of car B (v_b) = 50 km/hr

The distance between both cars will be the hours they will meet:

i.e.

$\mathbf{(v_a \times t)+(v_b\times t)= 800 \ km}$

$\mathbf{(30 \times t)+(50\times t)= 800 \ km}$

30t + 50t = 800

80t = 800

t = 800/80 hrs

t = 10 hrs

Learn more about the average speed of a car here:

brainly.com/question/6504879

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