A passenger took 30 kilograms of luggage by plane. According to the regulations of famous airlines, passengers can tie the shoelaces of 20KG luggage at most, and baggage tickets can be purchased at the rate of 1.5% for the overweight part. Now the passenger has bought a baggage ticket for 120. How much is her air ticket? 30-20 =10kg10 *1.5% =15%120 ÷ (1+15%) ≈.