I would use algebra to solve this: let the amount of child ticket sold be x and the amount of adults ticket sold be 2x so 2x•9.60+ x•6.30 = 969.00 19.2x+6.30x = 969.00 25.5 x =969.00 x=38 hence ans is 38 an alternative solution would be: 9.60×2 + 6.30 = 25.5 969.00÷25.5= 38 the methods are actually almost the same.