Question : The heights of six people are given as 6 feet 6 inches, 6 feet, 5 feet 8 inches, 6 feet 2 inches, 6 feet 4 inches, and 5 feet 10 inches, respectively. Find the average height of these six people.
Option 1: 6 feet 4 inches
Option 2: 6 feet
Option 3: 6 feet 1 inch
Option 4: 6 feet 6 inches
Correct Answer: 6 feet 1 inch
Solution :
The heights of six people are given as 6 feet 6 inches, 6 feet, 5 feet 8 inches, 6 feet 2 inches, 6 feet 4 inches, and 5 feet 10 inches.
Sum of heights = 6 feet 6 inches + 6 feet + 5 feet 8 inches + 6 feet 2 inches + 6 feet 4 inches + 5 feet 10 inches
= 34 feet + 30 inches
= 36 feet + 6 inches
Average = $\frac{\text{Sum of given numbers}}{\text{Total number}}=\frac {\text{36 feet + 6 inches}}{6} = \text{6 feet 1 inch}$
Hence, the correct answer is 6 feet 1 inch.
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