Respuesta :

Answer:

8 boxes of pens, 3 boxes of pencils

Step-by-step explanation:

120 is 3 boxes of pencils

120 is 8 boxes of pens

Answer:

3 boxes of pencils

8 packets of pens

Step-by-step explanation:

Lcm(40,15)=8*3*5=120 people at the conference

120:40=3 boxes of pencils

120:15=8 packets of pens