Question Bank • QB_GA_ADV_119 NAT • 1 Mark

Section 8: General Aptitude

Quantitative Aptitude

Subtopic: Data Interpretation

Question Statement:

Five soil samples have organic matter content measured as $1.8\%, 2.4\%, 3.1\%, 2.7\%,$ and $2.0\%$. What is the arithmetic mean organic matter content in percentage? ________ % (round off to two decimal places).

Answer Key:

2.40

Step-by-Step Solution & Explanation

**Method 1: Arithmetic Average** $\bar{x} = \frac{\sum x_i}{n} = \frac{1.8 + 2.4 + 3.1 + 2.7 + 2.0}{5} = \frac{12.0}{5} = 2.40\%$
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