The heights of four hills are 17Km., 18Km., 15Km., 6Hm. and 13 Km. and 4 Hm.
respectively. What is the average height of the hills?
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Answer: Average = 10.6 Km
Step by Step Explanation:
1 Hm = 0.1 Km
4 Hm = 4 × 0.1 = 0.4 Km
6 Hm = 6 × 0.1 = 0.6 Km
Average = Sum of terms ÷ Number of terms
Average = 17+ 18 + 15 + 0.6 + 13 + 0.4 ÷6
Average = 64÷ 6
With further calculation, we got
Average = 32 ÷ 3
Average = 10.6 Km
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