Directions:Study the following table carefully to answer these questions:

Percentage of Marks obtained by six students in six subjects

What is the ratio between total marks obtained by D in Biology, Maths and English together and the total marks obtained by F in these subjects together respectively?

Directions:Study the following table carefully to answer these questions:

Percentage of Marks obtained by six students in six subjects

What are the average marks obtained by all students in Chemistry?

Directions:Study the following table carefully to answer these questions:

Percentage of Marks obtained by six students in six subjects

What are the average marks obtained by all the students in Maths ?

Direction: Study the following table carefully to answer these questions.

Number of students appeared in 2006 from school A is what per cent of the total number of students appeared from school A for all the years together ? 

Direction: Study the following table carefully to answer these questions.

What is the ratio between the total number of students appeared in 2004 and 2005 together from' schools C and D respectively? 

Direction: Study the following table carefully to answer these questions.

What is the average number of students appeared from all the schools in 2007?

Direction: Study the following table carefully to answer these questions.

What is the average number of students appeared from school B for all the years ?

Direction: Study the following table carefully to answer these questions.

Number of students appeared from school E in 2004 is approximately what per cent of the total number of students appeared from all the schools together in that year?