Floating floor

We will put a floating floor in the room, which is 6.5 m long and 5 m wide. It is sold in packs of 1m². One package costs 279 CZK. How many packages will we have to buy, and how much will we pay for them?

Correct answer:

n =  33
x =  9207 Kc

Step-by-step explanation:

$$\begin{gathered} a=6.5 \\ b=5 \\ c=279 \\ S=a\cdot b=6.5\cdot 5=\frac{65}{2}=32\frac{1}{2}=32.5 \\ {n}_1=S/1=32.5/1=\frac{65}{2}=32\frac{1}{2}=32.5 \\ n=\lceil n_1\rceil =\lceil 32.5\rceil =33 \end{gathered}$$

$x=n\cdot c=33\cdot 279=9207\text{Kc}$

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