Respuesta :



3105-x=the wt of 12 apples
1980-x= the wt of 7 apples
3105-x-(1980-x)
3105-x-1980+x
=1125 the wt of 5 apples.
y/12=1125/5
y=2700 gm wt of 12 apples
3105-2700=405  Weight of the basket.
405 mass of weight is in the basket.
 hope this helps you.