The main purpose of the settlement of Jamestown was to

Searching for gold (and silver), making a profit (to become rich), and searching for a Northwest Passage.

Explanation:I took the test and got it right.

The main purpose of the settlement of Jamestown was to aid Britain in growing their wealth and power.

It was hoped that gold and silver would be found in the Jamestown settlement area and that the area would be home to raw materials to assist in furthering the British economy.