Soup

54% of pupils at the school eat in the canteen, 1/54 of students who eat in the canteen eat lunch soup.

a) What percentage of pupils who eat in the canteen and eat soup for lunch?
b) What percentage of all pupils of school eat lunch soup?

Final Answer:

a =  50 %
b =  27 %

Step-by-step explanation:

$a=\frac{1}{2}\cdot 100=\frac{1\cdot 100}{2}=\frac{100}{2}=50\%$

$$\begin{gathered} r=54\%=\frac{54}{100}=\frac{27}{50}=0.54 \\ b=r\cdot a=0.54\cdot 50=27\% \end{gathered}$$

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