Iam a number less than 3000 when you divide me by 30 to my remainder 30 you divide me by 58 my remainders 44 what number am i

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of