Answer:
Each pair of boys should get 46 papers.
Explanation:
multiply houses by streets to find the total number of papers:
13(12)=156
15(11)=154
8(13)=104
156+154+104=414
Because it say they will be in pairs you must divide the boys:
18/2=9
Then to find how many papers each boy must take divide total number of papers by the pairs of boys:
414/9=46