If energy (E), velocity (V) and time (T) are chosen as the fundamental quantities, the dimensional formula of surface tension will be

If force (F), velocity (V) and time (T) are taken as fundamental units, then dimensions of mass are

The pair of quantities having same dimensions is

If an experiment four quantities a, b, c and d are measured with percentage error 1%, 2%, 3% and 4% respectively.

Quantity P is calculated as follows P $$ = {{{a^3}{b^2}} \over {cd}}$$ % error in P is