Question : Read the given pie chart and answer the given question. 
What is the average number of Scale I officers in banks D, E and F?
Option 1: 90
Option 2: 85
Option 3: 80
Option 4: 75
Correct Answer: 80
Solution :
The total number of Scale I officers in all six banks is 500.
For banks D, E, and F, the percentages are 24%, 14%, and 10%, respectively.
The total number of Scale I officers in these three banks = (24% + 14% + 10%) × 500 = 240
The average number of Scale I officers in banks D, E, and F = $\frac{240}{3}$ = 80
Hence, the correct answer is 80.
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