Average
P6 Mathematics · Finding the average of a set of data, and the relationship between average, total value and number of data (P6 Math Topic 7). · 183 questions · difficulty D1–D4 · Singapore syllabus-aligned
Sample questions
SAMPLE 1
A group of students set up a rain gauge at their school grounds. They recorded the rainfall for six months. The average rainfall over the six months was 90 mm. The rainfall for five of the months are as follows:
January: 82 mm
February: 65 mm
March: 95 mm
April: 78 mm
May: 88 mm
June: ? (highest)
What is the difference between the highest and lowest rainfall?
SAMPLE 2
The average of four different 2-digit numbers is 90. What is the smallest possible number among them?
SAMPLE 3
The table shows the number of books borrowed from the school library from Monday to Thursday. Monday: 24, Tuesday: 30, Wednesday: 26, Thursday: 32. What is the average number of books borrowed per day?
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