Question

or
A natural foods supplier is mixing up a rice blend that contains 25% wild rice. They already have 1 pound of a blend that contains 29% wild rice. To this, they will be adding a second blend that contains 24% wild rice. How much of the second blend should be added to obtain the desired 25% wild rice blend?
Write your answer as a whole number or as a decimal rounded to the nearest tenth.
pounds

Answer 1

Let x = pounds of the 24% blend. Then
0.29(1) + 0.24x = 0.25(1 + x).
0.29 + 0.24x = 0.25 + 0.25x
0.04 = 0.01x
x = 4.

Answer: 4 pounds.