Quantitative Aptitude - Arithmetic Ability Questions

If a+b+c = 0, then (a^3 + b^3 + c^3)^2 = ?

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

The point Q(a,b) is first reflected in y­axis to Q1 and Q1 is reflected in x­axis to (­6,2). The co­ordinates of point Q are

cot3A is equal to

What is the reflection of the point (-0.5, 6) in the x-axis?

If (x2/yz) + (y2/zx) + (z2/xy) = 3, then what is the value of (x + y + z)3?

An equal sum is invested in two different schemes. One scheme gives simple interest and the other gives compound interest (annual compounding). The sum of interest obtained after 2 years from both the schemes is Rs 2961. If both schemes have 23% per annum interest rate, then what is the first year interest (in Rs)of simple interest scheme?

The difference between cost price and selling price is Rs 12.54. If loss percentage is 33%, then what is the cost price (in Rs)?