Relationship between average, total value and number of data

P6 Mathematics · Statistics · 161 questions · difficulty D1–D5 · Singapore MOE-aligned

Sample questions

SAMPLE 1

The total of 4 numbers is 60. What is their average?

SAMPLE 2

The average of 5 numbers is 10. A sixth number is added, and the new average becomes 12. What is the sixth number?

SAMPLE 3

The total distance covered by a runner over several laps is 240 m. The average distance per lap is 30 m. How many laps did the runner complete?

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