Answer:
8333 sheets of paper
Step-by-step explanation:
1000 grams is 1 kg
If there are 12 sheets of paper that weight 40g, then 40/12=3.33
1 sheet of paper=3.333g
If we need 2 1/2 kg of paper, 2 1/2 kg is exactly 2500g.
2500 x 3.333 = 8332.5 sheets of paper