A pound of peppermints costs $1.10. Fruit sours are $1.15 for half a pound. The student council has a budget of $160 to purchase candy to fill goody bags for a fundraising event. The council wants to buy three times as many sours as peppermints. Approximately how many pounds of sours will they buy?
1. 60 pounds of sours
2. 130.5 pounds of sours
3. 36 pounds of sours
4. 109 pounds of sours
5. 20 pounds of sours