Question

Casandra is training for 10 mile race. On the first day of training she runs 4 miles, each day after that she adds on 0.5 mile. on what day will Casandra run 8 miles

Answer 1

On day no 9, because to increase her mileage by 4 to reach 8 it will take her 4/0.5=8 days plus day 1 where she ran just 4 miles.

Answer 2

Cassandra will run 8 miles after 10 days.