Answer:
18 trips each and 5 of them will have to make an extra trip.
Step-by-step explanation:
The total amount they can carry in one trip (combined the 12 of them) is:
W = 30lb * 12 = 360lb per trip.
The total amount of newspaper is:
Wp = 3tons = 6613.86lb Divided by the amount they carry on each trip:
N = 6613.86 / 360 = 18.37 This means that all of them will have to make 18trips. But in 18 trips they only carry 18*360 = 6480lb. There would be 133.86lb left.
133.86 / 30lb = 4.46 BoyScouts. This means one extra trip for 5 of them