Quantitative Aptitude - Arithmetic Ability Questions

A certain principal is invested in a scheme of compound interest. The amount obtained after 1 year is Rs 2400 and the amount obtained after 2 years is Rs 2880. What is the rate of interest (in percentage)?

If a sum of money doubles itself in 8 yrs, then the interest rate in percentage is ?

Divide 3740 in three parts in such a way that half of the first part, one-third of the second part and one-sixth of the third part are equal.

If cot 60° + cosec 60° = x, then the value of x is

What is the value of (cosec30 - 1/√3)?

If cosπ/4c - tanπ/4c = x, then x is

What is the value of tan 6° tan 36° tan 84° tan 54° tan 45°?

Select the odd number from the given alternatives.