Quantitative Aptitude - Arithmetic Ability Questions

For x = 462+3, what is the value of x+22x-22+x+23x-23

If a + b = 10 and ab = 24, then what is the value of a3 + b3?

If L : M = 3 : 5 and M : N = 2 : 3, then N : L = ?

At 15% discount the selling price of a microwave oven is Rs 34000, what is the selling price if the discount is 37.5%?

A factory buys 7 machines. 2 Machine A, 2 Machine B and rest Machine C. Prices of the machines are Rs 95000, Rs 75000 and Rs 43000 respectively. Calculate the average cost of these machines?

A is twice as good as B and together they finish a piece of work in 16 days. The number of days taken by A alone to finish the work is

A sum of Rs 2000 becomes Rs 3645 in 2 years at a certain rate of compound interest. What will be the sum (in Rs) after 4 years?

If x+y+z = 1, 1/x + 1/y + 1/z = 1 and xyz = -1, then x3+y3+z3 is equal to