Current location - Education and Training Encyclopedia - Resume - Li Zhi practices chess every two days, and Zhang Ming practices chess every three days. If they play chess on June 6th,
Li Zhi practices chess every two days, and Zhang Ming practices chess every three days. If they play chess on June 6th,
6=2×3,8=2×2×2,

The least common multiple of 6 and 8 is: 2× 2× 2× 3 = 24;

So they meet every 24 days;

June 30, 24 days later is July 24;

A: They met again on July 24th.

So choose: a.