Quantitative Aptitude - Arithmetic Ability Questions

If a+b=3 then the value of a3+b3+9ab-­27 is

If pq(p+q) = 1, then the value of 1p3q3-p3-q3 is equal to

If Cos θ = 35/37, then what is the value of Cosec θ?

A rice trader buys 20 quintals of rice for Rs 8,580. However, 22% rice is lost in transportation. At what rate should he sell to earn 20% profit?

In the given figure, PQRSTU is a regular hexagon of side 12 cm. What is the area (in sq.cm) of triangle SQU?

To travel 732 km, an Express train takes 6 hours more than Rajdhani. If the speed of the Express train is doubled, it takes 3 hours less than Rajdhani. The speed of Rajdhani is

Ifx4 + (1/x4) = 34, then what is the value of x3 – (1/x3)?

A man buys a table and a chair for Rs. 500. He sells the table at a loss of 10% and the chair at a gain of 10%. He still gains Rs.10 on the whole. The cost price of chair in rupees is