Buy for $10, Sell for $20, Buy Back for $30, Sell for $40 — What Is the Profit?

This profit puzzle follows two separate buy-and-sell transactions. First, a man buys an item for $10 and sells it for $20. That gives him a $10 profit. Then he buys the same item back for $30 and later sells it for $40. That gives him another $10 profit. Add the two profits together and the total profit is $20. Another way to check is to combine all the cash flows: -$10 + $20 – $30 + $40 = $20. So the final answer is $20 profit. People sometimes get confused because the item is bought back at a higher price, but each transaction still produces a $10 gain. Looking at the full sequence makes the result clear.

Related Posts

Handwritten riddle on a clipboard asking what has a foot but no legs.

What Has a Foot but No Legs? The Classic Riddle Answer

What has a foot but no legs? This short classic riddle plays with a familiar word. See the answer and why it works.

Twelve ornate golden floral brooches in a grid, with one rotated brooch different from the others.

Which of These 12 Vintage Brooches Is Different? Find the Odd One Out

Twelve antique-style floral brooches look almost identical. One has a different orientation. Can you spot the odd one out?

Picture puzzle showing 15 fluffy baby pandas in three rows of five.

How Many Baby Pandas Can You See? The Cute Counting Puzzle

Count the smiling baby pandas in this picture. The little ones are arranged in rows, but can you spot all of them without missing one?

Classic handwritten riddle asking what has a thumb but no fingers.

What Has a Thumb but No Fingers? A Classic Riddle Explained

What has a thumb but no fingers? This old-fashioned brain teaser has a cozy, familiar answer. See if you can solve it first.

Vintage wooden rolling pin with four black silhouette options labeled A, B, C and D.

Which Shadow Matches the Old Wooden Rolling Pin? Picture Puzzle

A vintage wooden rolling pin and four similar silhouettes. Can you match the right shadow by comparing the handles and curves?

Illustrative birthday portrait of an older man on a porch holding a sign reading 106 Today.

106 Today and Still Smiling: A Heartwarming Birthday Tribute

A 106th birthday is an extraordinary milestone. This heartfelt tribute celebrates older generations, their memories and the joy of another year.

Leave a Reply

Your email address will not be published. Required fields are marked *