The king got bankrupt

Algebra Level 2

A king, overwhelmed by the game of chess, decided to give it's creator a handsome reward.

The inventor demanded that he wanted wheat grains for each of the boxes of the chessboard in the order- 1 for the first box, 2 for the second, 4 for the third, and so on, thus doubling the amount at each box.

What is the total no. of grains, he should recieve?

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