During a study of soil microorganisms, 300 samples were collected. Out of these, 78 samples contained actinomycetes. What percentage of the samples contain actinomycetes?
Answer
26%
The correct answer is 26% — State the final result.
Step-by-step solution
- Write the formula for percentage: (part/whole) × 100.
- Insert the numbers: (78 ÷ 300) × 100.
- Calculate 78 ÷ 300 = 0.26.
- Multiply by 100 to get 26%.
- State the final result.
Common mistake: Forgetting to multiply by 100
Concept tested: Percentage calculation
Published · How this solution was prepared and checked
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