Question

Suppose a quantity x can be dimensionally represented in terms of M, L and T, that is,[x]=M^a L^b T^c. The quantity mass
(a) can always be dimensionally represented in terms of L, T and x,
(b) can never be dimensoinally represented in terms of L, T and x, 

(c) may be represented in terms of L, T and x if a = 0,
(d) may be represented in terms of L, T and x if a 0.

Answer 1

(d) may be represented in terms of L, T and x if a 0.