Question 720841
In units alone:
( g ) x ( mg/g ) = mg
{{{ 3 * ( 1000/1 ) = 3000 }}} mg
You are asked for the number of tablets, 
which does not have units.
( mg in required dose ) / ( mg / tablet ) = number of tablets
{{{ 3000 / 600 = 5 }}}
The patient must take 5 tablets