Measures 45301

The races run for 5 km. So far, eight circuits have passed. One circuit measures 400m. How many meters have they run, and how many meters do they have to reach the finish line?

Correct answer:

a =  3200 m
z =  1800 m

Step-by-step explanation:

$a=8\cdot 400=3200\text{m}$

$$\begin{gathered} b=5\text{km}\to \text{m}=5\cdot 1000\text{m}=5000\text{m} \\ z=b-a=5000-3200=1800\text{m} \end{gathered}$$

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