The value of M (GMAT Prep)

[alex.gellatly]

If M = squareroot(4)+ cuberoot(4) + fourthroot (4), than the value of M is

Less than 3
Equal to 3
Between 3 and 4
equal to 4
Greater than 4

[Anurag@Gurome]

If M = squareroot(4)+ cuberoot(4) + fourthroot (4), than the value of M is

As 4 > 1, for any positive integer n, n-th root of 4 will be greater than 1

Hence, cuberoot(4) > 1
And, fourthroot(4) > 1
And, squareroot(4) = 2

Hence, M > (2 + 1 + 1) = 4

The correct answer is E.

[sandeep_thaparianz]

E