What approximate value should come in place of the question mark (?) in the following questions? (You are not expected to calculate the exact value) $(10.97)^2$ + $(4.13)^3$ $\times$ 3.79 = ?

What approximate value should come in place of the question mark (?) in the following questions? (You are not expected to calculate the exact value) 12.13% of 935.81 + 1498% of 25.85 = ?

What approximate value should come in place of the question mark (?) in the following questions? (You are not expected to calculate the exact value) $\sqrt [3]{65}$ $\times$ 23.93 - 31.04 = ?

What approximate value should come in place of the question mark (?) in the following questions? (You are not expected to calculate the exact value) 1624.12 $\times$ 3.891 = ?

What approximate value should come in place of the question mark (?) in the following questions? (You are not expected to calculate the exact value) 3018.19 $\div$ 2.87 - 841.02 = ?

Study the following table carefully and answer the given questions.

Total number of students in all the institute together in the year 2002 is approximately what percentage of total number of students in all the institutes together in the year 2006?

Study the following table carefully and answer the given questions.

What is the ratio between the number of students in the institute P and Q together and the number of students in the institute R and S together in the year 2002?

Study the following table carefully and answer the given questions.

What is the difference between the number of students in all the institute together having the highest number of students and all the institute together having the lowest number of students?

A man borrows Rs. 4,000 from a bank at 7 $1 \over 2$% compound interest. At the end of every year, he pays Rs. 1,500 as part repayment of loan and interest. How much does he still owe to the bank after three such instalments ?

In an examination the percentage of students qualified to the number of students appeared from school 'X' is 70%. In school 'Y' the number of students appeared is 20% more than the students appeared from school 'X' and the number of students qualified from school 'Y' is 50% more than the students qualified from school 'X'. What is the percentage of students qualified to the number of students appeared from school 'Y' ?

If Rs.1000 be invested at interest rate of 5% and the interest be added to the principal after 10 year, then the number of years in which it will amount to Rs.2000 is