If ‘P + Q’ means ‘P is the daughter of Q’,
‘P − Q’ means ‘P is the husband of Q’, and
‘P × Q’ means ‘P is the brother of Q’,

then what is the relationship of A + B × C?

If ‘P + Q’ means ‘P is the daughter of Q’,

 A + B × C

So, A is the daughter of C’s brother

That means:

A is the niece of C

Final Answer: