From: Nigel Boston 
Resent-Date:  Thu, 27 Jul 95 21:44:05 BST

Does there exist a 3-generated finite group generated by a cyclic group
of order 2 and a non-abelian group of order 21 ? This is a specific case of
a question of Ribes and Wong, asked if, given finite groups H and K, there
exists a finite group G generated by groups isomorphic to H and K such that
d(G) = d(H) + d(K). 

 Nigel Boston