James buys 20 coins of a cryptocurrency at $15 each. The value of the coins increases by 2/3. He sells coins to recoup his original investment. How many coins did he sell?
Let’s work this out in a step by step way to be sure we have the right answer.
12
His original investment was 15 * 20 = $300.

The value of his investment increases by 15 * 2 / 3 = $10 per coin.

So each coin was worth 15 + 10 = $25.

So he sold 300 / 25 = 12 coins.

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So, the final answer is 12