Quantitative Aptitude - Arithmetic Ability Questions

If x - y = -8 and xy = 45, then (x2 + y2) is

Find out the odd word/letters/number/number pair from the given alternatives.

The simplification value of 735+2-552+7+227+5 is

If a+b+c=15 and 1a+1b+1c=71abc, then the a3+b3+c3-3abc is

A solid cube is cut into 27 identical cubes. What is the percentage increase in the total surface area?

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

ΔPQR is right angled at Q. If cotP = 5/12, then what is the value of tanR ?

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