Question: Sally is selling boxes of crackers for her scout troop's fund-raiser. If she sells 50% more on Sunday than she sold on Saturday, then she'll have sold a total of 150 boxes on the two days. How many boxes did she sell on Saturday?
Solution:
Let S be the number of boxes sold on Saturday.
S+1.5S=150
2.5S=150
S=60
Sally sold 60 boxes on Saturday.
Answer: 60