Answer:
100 is Rico's first save, it says that after that bs manage to add one-half more than what he saved the previous month so it became 150 the next month
Step-by-step explanation:
first month is 100 and its half is 50 so add 100 and 50 = 150 and that's his saving for the second month. then for the third month 150 then its half is 75 add those two= 225 so that's his saving for the third month