Study the graph carefully and answer the following questions.

How many state showing above average production in 1992-93 showed below average production in 1993-94 ?

A person started his journey in the morning.  At 11.a.m he covered of the journey and on the same day at 4.30 p.m. he covered  of the journey. He started his journey at? 

Study the following graph and answer the question that follow.
Number of candidates passed form institutes C and E together is approximately what percentage of the total number of candidates appeared from institutes A and G together?

Simplify : $$ {9\over 13} ÷{18\over 26}÷{90\over 52}$$

At a clearance sale, a shopkeeper gives 45% discount. If a customer paid ₹330 during the sale, then what is the marked price of that shirt?

The angle of elevation of a tower from a distance 50 m from its foot is 30°. The height of the tower is 

The product of two positive numbers is 11520 and their quotient is $$9\over5$$.Find the difference of two numbers?

If $$ {t^{2}-4t+1=0}$$ then what is the value of $${t^{3}+{1\over {t^{3}}}}$$ ?