Quantitative Aptitude - Arithmetic Ability Questions

In the following question, select the related number from the given alternatives.

695 : 659 : : 839 : ?

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

In the following question, select the odd number pair from the given alternatives.

The average of 8 consecutive integers is 23/2. What is the average of first three integers?

The areas of two similar triangles ΔXYZ and ΔPQR are 100 sq cms and 25 sq cms respectively. If PQ = 4 cm then what is the length of XY (in cm)?

If 2+aa + 2+bb + 2+cc = 4, then the value of ab+bc+caabc is

If √(sec2A ­ 1) = x, then the value of x is

If tan(A/2) = x, then the value of x is