Instructions

The bar graph shows average marks scored in a 100 marks Science exam by students of 7 divisions of Standard X. Study the diagram and answer the following questions. 

                                                    Average Science Marks

                                                        Division

Question 95

If all students of Division A lost 5 marks each for indiscipline then their new average marks would decrease by how much?

Solution

Current average marks of all students of Division A = 75

If all students of Division A lost 5 marks each, then new average marks = 75-5 = 70

=> Required % decrease = $$\frac{(75-70)}{75}\times100$$

= $$\frac{100}{15}=6.67\%$$

=> Ans - (C)

Video Solution

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