Man buys laptop for $500 Man sells laptop for $600 Man buys laptop again for $700 Man sells laptop for $800 How much money did the man make or lose?

Answer: the man made $200

Step-by-step explanation:

The price at which the man bought the laptop is $500.

The price at which the man sold the laptop is $600.

Profit or loss is expressed as selling price - cost price. Therefore, the profit made is

600 - 500 = $100

The man buys laptop again for $700. The price at which the man sold the laptop is $800. The profit made is

800 - 700 = $100

Total amount of profit made is 100 + 100 = $200