A’s mother is only daughter of B’s mother. B is A’s what.

• maternal uncle
• 11 years agoHelpfull: Yes(10) No(1)
• grand mother
• 10 years agoHelpfull: Yes(2) No(1)
• A's mother is only daughter of B's mother means A's mother is mother only
  so the answer is mom
• 9 years agoHelpfull: Yes(1) No(0)
• B is A's Niece
• 11 years agoHelpfull: Yes(0) No(1)
• Sorry for the mistake and check again
  A's mother is only daughter of B's mother means A's mother is B only
  so the answer is mom
• 9 years agoHelpfull: Yes(0) No(1)