Study the following graph carefully and answer the questions given below it.
Percentage Profit/Loss = $$\frac{Income - Expenditure}{Expenditure}\times100$$
Expenditures of company B in 1996 and 1997 are Rs. 12 lakhs and Rs. 14.5 lakhs respectively. What was the total income of company B in 1996 and 1997 together (in lakh rupees)?
Ratio of expenditure of companies A and B in 1999 was 3 : 4. What was the ratio of their incomes in 1999 ?
Total expenditure of company A in all the three years together was Rs. 82.5 lakhs. What was the total income of the company in all the years together ?
If the expenditure of company A and B in 2000 were equal and the total income of the two companies was Rs. 5.7 lakhs, what was the total expenditure of the two companies in 2000 ?
If the income of company B in 1997 and 1998 were in the ratio of 2 : 3, what was the ratio of the expenditure of the company in these two years ?
Study the following table to answer these questions.
Percentage of marks obtained by 7 students in 6 subjects (maximum marks for each subject is shown in brackets)
Approximately what is the overall percentage of marks obtained by the T in all the subjects ?
What is the overall percentage marks obtained by M in all the subjects (rounded off to two digits after decimal)?
What is the approx. average percentage of marks obtained by all the students in Maths ?