word problems

Juliana Lecompte and Sofia Schuster

Arithmetic

One student fell on the soccer field 2 friends came to see what happened, every minute 2 more students arrived to the soccer field. In 10 minutes how many students will there be on the soccer field? Find S12.

Geometric

A skater started with a velocity of 4 km/hr, if he doubles his velocity each kilometer what will be his velocity on the 30th kilometer? Find S30?