Study the following table carefully and answer the questions given below.

In which year the percentage change in the case of Agriculture discipline was highest from the previous year?

The simple interest on an amount at the rate of 13.5 p.c.p.a. for 10 years is Rs. 765.45. What is the sum?

If $$ {x^{12}+x^{3}\over {x^{6}}}=0$$ find $$ {x^{36}+{1\over x^{36}}}$$

The least number, which must be added to 6709 to make it exactly divisible by 9, is 

A mixture contains milk and water in the ratio 5: 1. On adding 4 litres of water, the ratio of milk and water becomes 5: 2. What is the quantity of milk in the original mixture?

The largest number of five digits, which is a perfect square is 

The length of a chord which is at a distance of 12 cm from the center of a circle of radius 13 cm is 

Direction : What value should come in place question mark(?) in the following questions?

$$2\over7$$ of $$ 5\over6$$ of ?=200