Statues

Diana is painting statues. She has 7/8 of a liter of paint remaining. Each statue requires 1/20 of a liter of paint.

How many statues can she paint?

Correct answer:

n =  17

Step-by-step explanation:

$$\begin{gathered} V=\frac{7}{8}=0.875\text{l} \\ {V}_1=\frac{1}{20}=0.05\text{l} \\ N=V/V_1=\frac{7}{8}/\frac{1}{20}=\frac{7}{8}:\frac{1}{20}=\frac{7}{8}\cdot \frac{20}{1}=\frac{7\cdot 20}{8\cdot 1}=\frac{140}{8}=\frac{35}{2}=17\frac{1}{2}=17.5 \\ n=\lfloor N\rfloor =\lfloor 17.5\rfloor =17 \end{gathered}$$

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