22. Paying for 7 Days With 2 Cuts A landlady permitted the students to rent her apartment with the following condition: the student will pay her 7 golden chain for her 7 days stay at her apartment, she is only allowed to cut the chain twice but the student is obliged to pay one chain daily for 7 days. How is it possible? Added 27 October 2021 Show Hint Show Solution Hint: Think about how to divide the chains to meet the daily payment requirement. Solution: The landlady can cut the chain into three pieces: one piece of 1 chain, one piece of 2 chains, and one piece of 4 chains. On each day, the student can pay as follows:Day 1: Pay 1 chainDay 2: Return 1 chain and pay 2 chains (total 2 chains)Day 3: Return 2 chains and pay 4 chains (total 4 chains)Day 4: Pay 1 chainDay 5: Return 1 chain and pay 2 chains (total 2 chains)Day 6: Return 2 chains and pay 4 chains (total 4 chains)Day 7: Pay 1 chain
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