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Question:

At the arcade, Nick spent 203 tokens on video games in seven days. Each day he spent five more tokens than the previous day. How many tokens did Nick spend on the third day at the arcade?

A 24 tokens
Explaination

Let x = the number of tokens Nick spent on day 1. Set up the following equation and solve for x: x + (x + 5) + (x + 10) + (x + 15) + (x + 20) + (x + 25) + (x + 30) = 203
7x + 105 = 203
x = 14 tokens . We know Nick spent 14 tokens on the first day. To find what he spent on the third day, add 10 tokens to get 24 tokens.