Centimeters 3131

111 square centimeters of sheet metal are used to produce one part. How many of the most parts can we make from sheet metal with dimensions of 3 m wide and 0.75 m long?

Correct answer:

n =  202

Step-by-step explanation:

$$\begin{gathered} S_1=111{\text{cm}}^2\to {\text{m}}^2=111:10000{\text{m}}^2=0.0111{\text{m}}^2 \\ a=3\text{m} \\ b=0.75\text{m} \\ {S}_2=a\cdot b=3\cdot 0.75=\frac{9}{4}=2\frac{1}{4}=2.25{\text{m}}^2 \\ n=\lfloor S_2/S_1\rfloor =\lfloor 2.25/0.0111\rfloor =202 \end{gathered}$$

Try another example