CREATE TABLE table_name_62 (round1 INTEGER, round5 VARCHAR(255), round2 VARCHAR(255), round3 VARCHAR(255), total_points VARCHAR(255))
what is round1 when round3 is less than 51, total points is less than 273, round2 is less than 98 and round5 is less than 24?
    
SQL: SELECT AVG(round1) FROM table_name_62 WHERE round3 < 51 AND total_points < 273 AND round2 < 98 AND round5 < 24