Good girls and bad boys (10)

Logic Level 2

On an island, there is this strange pattern - boys always lie while girls always tell the truth. Once again, you encounter four children.

  • The oldest one says, "I have at most one younger sister."

  • The second one says, "I have exactly two brothers."

  • The third one says, "Half of us are girls."

  • The youngest one says, "I have three elder sisters."

How many girls are there?


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