Question : Directions: Study the double bar graph given below and answer the question.
The average number of students participating in the exhibition is:
Option 1: 48.75
Option 2: 52.5
Option 3: 45
Option 4: 50
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Correct Answer: 52.5
Solution :
From the given graph,
The total number of students participating in the exhibition = 45 + 30 + 60 + 75 = 210
The number of classes = 4
The average number of students participating in the exhibition = $\frac{\text{The total number of students participating in the exhibition}}{{\text{The number of classes}}}$
The average number of students participating in the exhibition = $\frac{210}{4}$ = 52.5
Hence, the correct answer is 52.5.
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