Question : Direction: The bar graph shows the average marks scored in a 100–mark Science exam by students of 7 divisions of Standard X. Study the diagram and answer the following question.
If all students of Division A lost 5 marks each for indiscipline, then their new average marks would decrease by how much?
Option 1: 5%
Option 2: 11.11%
Option 3: 6.67%
Option 4: 10%
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Correct Answer: 6.67%
Solution :
Initial average marks of Division A = 75 marks
Decrease in marks of each student = 5 marks
So, the decrease in average marks = 5
Loss percentage = $\frac{5}{75}\times 100$ = 6.67%
Hence, the correct answer is 6.67%.
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