Quantitative Aptitude - Arithmetic Ability Questions

If x2 – 16x – 59 = 0, then what is the value of (x – 6)2 + [1/(x – 6)2]?

If x2 + y2 + 6x + 5 = 4(x - y) then x - y is

Findout the odd word/letters/number/number pair from the given alternatives.
7 : 50 : : 9 : ?

Select the odd word/letters/number/number pair from the given alternatives.

Atul can do a piece of work in 18 days, Aaravya is 50% more efficient than Atul. How much more time does Atul take than Aaravya to do the same piece of work?

A batsman in his 12th innings makes a score of 120, and thereby increase his average by 5. The average score after 12th innings is

If x+1x = 2, then x2+1x2 = ?

Find the volume (in cub.cm) of a sphere of diameter 42 cm