An agricultural test plot compared three organic fertilizer treatments on barley yield (kg per hectare): Treatment X yielded 4,200 kg; Treatment Y yielded 4,800 kg; Treatment Z yielded 5,400 kg. By what percentage was the yield of Treatment Z greater than that of Treatment X?
Answer and explanation
Correct answer: C. 28.57%
- Step 1: Find the difference between Treatment Z and Treatment X: kg. Step 2. Divide by Treatment X's baseline: . Answer: 28.57%. Why not the others: would be an increase of 1,050 kg; would be 1,260 kg; would be 1,400 kg.
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