문제부터가 막히네요...ㅜㅜ

A swimmer plans to swim at least 100 laps during a 6-day period.  During this period, the swimmer will increase the number of laps completed each day by one lap.  Write and Solve an inequality to determine what the least number of laps the swimer must comlete on the first day would be.

Let Statement 를 사용해야 한대요.

미리 감사드립니다...