Question

Julie is training to be in the hot dog eating contest. Her daily goal is to be able eat twice the amount of hot dogs she ate the day before. Her ultimate goal is to be able to eat 128 hot dogs in one day. If she eats 2 hot dogs on the first day, how many days will it take for her to reach her goal

Answer 1

It takes Julie 7 days.

Day 1 - 2 hot dogs
Day 2 - 4
Day 3 - 8
Day 4 - 16
Day 5 - 32
Day 6 - 64
Day 7 - 128