Respuesta :

(Not my own work.)

8 = 2 x 2 x 2 
30 = ...........2 x 3 x 5 
75 = ................3 x 5 x 5 
-------------------------------------- 
....= 2 x 2 x 2 x 3 x 5 x 5 
....= 600
The answer will be 600..................