Quantitative Aptitude - Arithmetic Ability Questions

When 0.090909.....is converted into a fraction, then the result is

The mode and median of the data 8, 6, 8, 7, 8, 6, 8, 7, 6 is

If 5x = 30-y = 6z, then what is the value of (xy + yz + zx)/xyz?

If a – (1/a) = b, b – (1/b) = c and c – (1/c) = a, then what is the value of (1/ab) + (1/bc) + (1/ca)?

(61 + 62 + 63 + ......... +110) = ?

What is the measure of an interior angle of a regular decagon?

A complete factorisation of x4 + 64 is

Simple interest on a sum of Rs 1400 for 3 years and 4 months is Rs 700. What is the rate (in percentage) of interest per annum?