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Popular Word Problems >

What is the average speed of a race car if it reaches the finish line of a 420km long race in one and a half hours?

Solution

Wha t i s t h e a v er a g e s p ee d o f a r a ce c a r i f i t re a c h es t h e f ini s h l in e o f a 420 km l o n g r a ce in o n e an d a ha l f h o u rs ?

Solution

speed : 280

Solution steps

Translate the problem into an equation:

420 = x \frac{3}{2}

Solve for

x, 420 = x \frac{3}{2} : x = 280

speed : 280

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