List of top Mathematics Questions on Real Numbers asked in KCET

If $[x]^2 - 5[x] + 6 = 0$, where $[x]$ denotes the greatest integer function, then:

Given that a,b and x are real numbers and a< b, x < 0 then

The negation of the statement “For all real numbers x and y, x + y = y + x” is

The negation of the statement “For every real number $x ; x^2 + 5$ is positive” is