Video solusi : Prices for a vehicle is Rp60.000,00 for adults, Rp35.000,00 for students, Rp25.000,00 for children under 12 years old. On holidays they have sold 278 tickets with total acceptance Rp1.300.000,00. If adult tickets were sold 10 fewer tickets than twice of students tickets that have been sold. Calculate many tickets were sold for each category.