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
Which division scored the second lowest marks?
What is the ratio of average marks scored by Division D to Division A?
Marks of division F were lesser than that of Division C by _________
If all students of Division A lost 5 marks each for indiscipline then their new average marks would decrease by how much?
For the following questions answer them individually
If a = 4011 and b = 3989 then value of ab = ?