Perimeter 83524

The swimming pool is 25 m x 12 m. The safety coating around the perimeter needs to be restored. One can of paint is enough to paint 15 m. How many cans of paint should be bought? One can cost 300 Sk. How much SK will we pay for the paint?

Correct answer:

n =  5
s =  1500 Kc

Step-by-step explanation:

$$\begin{gathered} a=25\text{m} \\ b=12\text{m} \\ l=15\text{m} \\ o=2\cdot (a+b)=2\cdot (25+12)=74\text{m} \\ {n}_0=o/l=74/15=\frac{74}{15}=4\frac{14}{15}\doteq 4.9333 \\ n=\lceil n_0\rceil =\lceil 4.9333\rceil =5 \end{gathered}$$

$s=300\cdot n=300\cdot 5=1500\text{Kc}$

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