Question

Sarah is playing a video game that allows her to double her coins each hour. The game starts with 4 coins and Sarah plays the game for 2 hours. How many coins will she have at the end of the two hours.

Answer 1

16 coins

Explanation:

At first: 4 coins

First hour: 4 x 2 = 8

Second hour: 8 x 2 = 16

Total coins: 16 coins