Summerjob

Milan saved a quarter of the money from the summer job, bought a winter jacket for half, bought gifts for his parents and siblings for a sixth, and still had CZK 400 left. How much did Milan earn?

Correct answer:

x =  4800 Kc

Step-by-step explanation:

$$\begin{gathered} x/4+x/2+x/6+400=x \\ 11/12\cdot x+400=x \\ 400=\frac{x}{12} \\ 400=x/12 \\ x=4800 \\ x=\frac{4800}{1}=4800 \\ x=4800=4800\text{Kc} \end{gathered}$$

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