Averages

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Questions 76–76 of 76 Averages MCQs — start at page 1 for an overview.

Topics in Mathematics

Geometry and Mensuration · 234 Percentages · 218 Profit, Loss and Discount · 171 Time and Work · 168 Ratio, Proportion and Partnership · 137 Simple and Compound Interest · 125 Speed, Time and Distance · 113 Number Theory, HCF and LCM · 105 Algebra and Equations · 88 Permutations, Combinations and Probability · 83 Averages · 76

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Averages

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Mathematics

What is the arithmetic mean of the following data: 3, 6, 9, 12, 15?

Correct answer: B

Correct

Explanation and memory cue

The arithmetic mean is calculated by summing all the data points (3 + 6 + 9 + 12 + 15 = 45) and dividing by the number of data points (5), resulting in 45/5 = 9.