Question

The total amount Jena paid for 3 kilograms of pork and 4 kilograms of fish is less than 1000 supposed a kilogram of pork cost 195,What could be the maximum cost of a kilogram of fish nearest pesos?

Answer 1

If fish costs f/kg, then

3*195 + 4f < 1000
4f < 415
f < 103.75
fish must cost less than 103 pesos/kg