Quantitative Aptitude - Arithmetic Ability Questions

If x = 11, the value of x5 - 12x4 + 12x3 - 12x2 + 12x - 1 is

α and β are the roots of quadratic equation. If α + β = 8 and α – β = 2√5, then which of the following equation will have roots α4 and β4?

Convert decimal number 101 to binary.

K is 5 years older to H. H is 3 years younger to R. R is 6 years older to C. C is 7 years younger to L. Who is the eldest?

The distance between the points (4, 8) and (k,-4) is 13. What is the value of k?

Among four students sitting in a row, average age of last three students is 20 years and the average age of first three students is 21 years. If the age of first student is 26 years, then what is the age (in years) of the last student?

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

What is the simplified value of (cos A + sin A)(cot A + tan A)?