Question
The ages of 5 children are 6, 8, 10, 12 and 14 years.
Find their average age.Solution
Sum of ages = 6 + 8 + 10 + 12 + 14 = 14 + 10 + 12 + 14 = 24 + 12 + 14 = 36 + 14 = 50 Average age = Sum / Number of children = 50 / 5 = 10 years
- Find the mean proportion of 7.2 and 16.2.
- Determine the fourth proportion for 20, 25, and 40.
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