How many children does M have? Statements: I. H is the only daughter of X, who is the wife of M. II. K and J are brothers of M.

I alone is sufficient while II alone is not sufficient
II alone is sufficient while I alone is not sufficient
Either I or II is sufficient
Neither I nor II is sufficient

Correct answer: Neither I nor II is sufficient

Solution

Statement I tells us that X is M's wife and H is their daughter, but it does not tell us whether M has any other children. Statement II only says K and J are M's brothers, which gives no information about M's children. So neither statement alone is sufficient.

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