Question: Which nation finished with a time of 47.049?
SQL: SELECT "Nation" FROM "2-15204848-3" WHERE "Time (sec.)" = 47.049;

Question: Which sport has a time over 49?
SQL: SELECT "Sport" FROM "2-15204848-3" WHERE "Time (sec.)" > 49.0;

Question: Which nation had a time of 48.38?
SQL: SELECT "Nation" FROM "2-15204848-3" WHERE "Time (sec.)" = 48.38;