Quantitative Aptitude - Arithmetic Ability Questions

If the expression px3 – 2x2 – qx + 18 is completely divisible by (x2 – 9), then what is the ratio between p and q respectively?

What is the length of the arc whose central angle is 30° and radius of the circle is 21 cm?

A dealer marks his goods 20% above their cost prices. Then,he allows such a discount on the marked price so that he makes a profit of 8%. The rate of discount is:

Find the standard deviation of {11, 7, 10,13, 9}

The length of the diagonal and the breadth of a rectangle is 26 cm and 10 cm respectively. Calculate its area (in cm2).

A man spends 59% of his income and saves the rest. What percentage of his expenditure does he save?

Jalal, Amit and Feroz enter into partnership. Jalal invests 4 times as much as Amit and Amit invests three-fourth of what Feroz invests. At the end of the financial year, the total profit earned is Rs. 19,000. Find the share for Jalal.

What is the compound interest earned on Rs 80,000 at 40% per annum in 1 year compounded quarterly?