Problema Solution
A Farmer has fertilizer in 5% and 15% solutions. How much of each type should he mix to obtain 100 liters of fertilizer in 12% solution?
Answer provided by our tutors
Let
x = liters of the 5% solution
y = liters of the 15% solution
x + y = 100
0.05x + 0.15y = 0.12*100
........
click here to see the system of equations solved for x and y
........
x = 30 L
y = 70 L
The farmer should use 30 liters of the 5% solution and 70 liters of the 15% solution.