Clotheslines

Mommy needs 6 clothesline 360 cm long. Clotheslines is sold in the length of eight meters. How many of these clotheslines must buy mom if any does not want to be connected? How much mommy pay for the clotheslines when 1 piece costs 24kč?

Correct result:

n =  3
x =  72 Kc

Solution:

$$\begin{gathered} k=\lfloor 800\mathrm{/}360\rfloor =2 \\ n=6\mathrm{/}k=6\mathrm{/}2=3 \end{gathered}$$

$x=24\cdot n=24\cdot 3=72\text{ Kc}$

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