Children's 7598

There are 3 times more chairs in the kitchen than in the children's room. There are 2x fewer chairs in the children's room than in the living room. There are 2x more chairs in the living room than in the garden, where there are 2 chairs. All the chairs were equally cheap. How much did all the chairs cost, if one piece is 5 times cheaper than a table for 1000 CZK?

Correct answer:

x =  2800 kc

Step-by-step explanation:

$$\begin{gathered} z=2 \\ p=2\cdot z=2\cdot 2=4 \\ d=p/2=4/2=2 \\ k=3\cdot d=3\cdot 2=6 \\ n=z+p+d+k=2+4+2+6=14 \\ c=1000/5=200\text{kc/ks} \\ x=c\cdot n=200\cdot 14=2800\text{kc} \end{gathered}$$

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