hard · GMAT Quant
An agricultural firm tests two fertilizers. Fertilizer A produces an average yield of 60 bushels per acre, and Fertilizer B produces an average yield of 85 bushels per acre. If the combined average yield for all acres tested is 70 bushels per acre, and 150 total acres were tested
How many acres used Fertilizer B?
- 60
- 90
- 75
- 50
- 100
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