Problema Solution
How much coffee beans worth Php 50 a kilogram should be added to 60 kilograms of coffee beans worth php 75 a kilogram should be added to 60 kilograms of coffee beans worth Php 75 a kilogram to obtain a mixture worth Php 60 a kilogram?
Answer provided by our tutors
let the kg of php 50 coffee be x
50x + 75(60) = (x+60)(60)
solve for x
50x + 4500 = 60x + 3600
4500 = 10x + 3600
900 = 10x
90 = x
therefore, you should add 90 kg of the coffee beans worth php 50