A man invested $150 in the stock market. During the first week, he lost $45. During the second week, he tripled his money. How much does he have at the end of the second week?

A man invested $150 in the stock market. During the first week, he lost $45. During the second week, he tripled his money. How much does he have at the end of the second week?

Detailed Explanation

First, calculate how much he had at the end of the first week: 150 – 45 = 105

Since he tripled his money, it is then necessary to multiply this value by 3:

105 × 3 = 315

Since he tripled his money, it is then necessary to multiply this value by 3:

105 × 3 = 315