Quantitative Aptitude - Arithmetic Ability Questions

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

If cosA/(1 - sinA) = x, then the value of x is

If -5x3+2 = x-6, then find the value of x?

46% of 250 is equal to

The amount received at 10% per annum compound interest after 3 yrs is Rs 10,648. What was the principal (in Rs)?

A bank offers 20% compound interest per half year. A customer deposits Rs 6000 each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest is

Of the 3 numbers whose average is 40, the first is 1/3 rd the sum of other 2. What is the first number?

The sum of 15 observations of a data is (434 + x). If the mean of the data is x, then the value of x is