Question : The numbers of students in different classes of a school are shown in the following bar graph.
The maximum difference in the numbers of students in any two classes is what percentage of the number of students in Class 7 (correct to two decimal places)?
Option 1: 39.71%
Option 2: 34.29%
Option 3: 33.48%
Option 4: 36.48%
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Correct Answer: 39.71%
Solution :
The maximum difference is between the highest and lowest numbers of students $=68 - 41 = 27$
Number of students in Class 7 $= 68$
$\therefore$ The maximum difference as a percentage of the number of students in Class 7 $=\frac{27}{68} \times 100 = 39.71\%$
Hence, the correct answer is 39.71%.
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