That's such a bad approximation though.
I only approximated at the end to get 25/15 = 5/3.
unicornilove
Sofia is in charge of ordering ingredients for a restaurant. Only one of the meals on the restaurant's menu features shrimp, and each time that meal is ordered, the restaurant uses exactly 5 shrimp. Sofia will purchase shrimp at a price of 12.50 euros per kilogram, with approximately 42 shrimp per kilogram on average. Sofia determined that if a total of n shrimp meals are ordered at the restaurant per day on average, then a good approximation for the average daily cost to the restaurant, in euros, for the shrimp served can be found by multiplying n by p and dividing the result by q.
Select a value for p and a value for g that would together create the closest approximation from among the options given for the average daily cost, in euros, to the restaurant for the shrimp served. Make only two selections, one in each column.
The information that comes out..
1) Every shrimp meal has 5 shrimps, so n meals would have 5n shrimps.
2) Almost 42 shrimps come in one kg @ Euros 12.5 per kg, so 1 shrimp would come for \(\frac{12.5}{42} \) ~ \( \frac{12.6}{42} = 0.3\) ( We are approximating the answer)
3) Thus, 5n will cost 5n*0.3 or 1.5n
Look for \(\frac{p}{q}\) that gives a value closer to 1.5
\(\frac{3}{2} = 1.5\), so
p=3 and q=2