Question : Directions: Study the bar diagram and answer the question.
Total number of boys and girls in five different departments of a college.
The percentage of the boys from the Biology department compared to the total number of boys from all the departments together is:
Option 1: $33\frac{1}{2}\%$
Option 2: $50\%$
Option 3: $33\frac{1}{3}\%$
Option 4: $30\%$
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Correct Answer: $33\frac{1}{3}\%$
Solution :
From the given graph,
The total number of boys from all the departments = 60 + 220 + 100 + 160 + 120 = 660
The number of boys in the Biology Department = 220
The required percentage = $\frac{\text{The number of boys in the Biology Department}}{\text{The total number of boys from all the departments}}$ × 100
The required percentage = $\frac{220}{660}$ × 100
The required percentage = $33\frac{1}{3}\%$
Hence, the correct answer is $33\frac{1}{3}\%$.
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