A box containing 15 marbles has a weight of 780 g. If each marble has a weight of 30 g, then find the weight of the empty box.
A. 780 g
B. 330 g
C. 450 g
D. 300 g
Answer:B
A box containing 15 marbles has a weight of 780 g. If each marble has a weight of 30 g, then find the weight of the empty box.
A. 780 g B. 330 g C. 450 g D. 300 g