Question

A basket with 12 apples has a mass of 3105 g the same basket with seven apples has a mass of 1980 g each Apple has the same mass what is the mass of the basket?

Answer 1

405 mass of weight is in the basket.
hope this helps you.

Answer 2

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.