Quantitative Aptitude - Arithmetic Ability Questions

Find the odd word/number/letters from the given alternatives

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

The distance between the points (7,7) and (k,-5) is 13. Find k?

If 5x ­- 40 = 3x, then the numerical value of 2x -­ 11 is

The first and last terms of an arithmetic progression are 25 and ­52. What is the sum of the series if it has 12 terms?

What must be the length (in cm) of the diagonal of a rectangle if its area and breadth are 60 cm² and 5 cm respectively?

Yaman sold an item at a loss of 10%. If he had sold it for Rs.57 more, he would have made a profit of 20%. What should be the selling price of the item to make a profit of 30%?

A root of equation ax2 + bx + c = 0 (where a, b and c are rational numbers) is 5 + 3√3. What is the value of (a2 + b2 + c2)/(a + b + c)?