Question 829430
This is more of a riddle: 
Bob has three and half dozen sons and each son has three sisters. How many children does Bob have? 
<pre>
It depends on what "three and half dozen" means.
It might mean "3+6" or 9 but it might mean "{{{3&1/2}}} dozen or 42.
I'll assume it means 9, since 42 is too many to be practical.

Each of the 9 sons have the SAME three sisters, (not each with a
different set of sisters).

So Bob has 9 sons + 3 daughters, or 12 children.

Edwin</pre>