A birthday party was organize by 30 friend. Each friend was to contribute $12. At the last minutes 3 friends (?) pulled out so that the remaining friends had to cover the entire bill. Each remaining party goer's share of payment increased by what %? Can you find the general answer if N friend pull out?
TJ test prep practice problems for our students and readers. The problems provide a very small sampling of what Optimal TJ Prep students work with.