Quantitative Aptitude - Arithmetic Ability Questions

What is that least number that must be added to the product 684 × 686 to make it a perfect square?

The value of (2+32-3-342) is

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

Select the odd letters from the given alternatives.

A rectangular playground ground of length 125 m and width 75 m, has a walking strip of width 3 m in the middle of the ground, along the longer side. What is the area of the ground without the walking strip?

Two numbers are in the ratio 5:6 when 6 is added to each, the ratio becomes 7:8 then the numbers are

If x2 – 12x + 33 = 0, then what is the value of (x – 4)2 + [1/(x – 4)2]?

What is the simplest form of (1 + cosA)(cosecA ­ cotA)?