Lalremsiami was born on Saturday, 29 February 2020. In which later year will 29 February next fall on a Saturday?

Explanation

1. 01

   Her birthday exists only in leap years: 2024, 2028, 2032, …

2. 02

   From one 29 February to the next is $4 \times 365 + 1 = 1461$ days $= 208$ weeks $+ 5$ days, so each birthday moves 5 days on.

3. 03

   Saturday + 5 = Thursday (2024), then Tuesday (2028), Sunday (2032), Friday (2036), Wednesday (2040), Monday (2044), Saturday (2048).

4. 04

   After 7 steps of 5 days ($35 = 5$ weeks) it is Saturday again: 2048.