Question

There are 4 blocks in the top of first tier of a pyramid. 8 blocks in the second tier. 16 in the third tier. 32 in the fourth tier. How many in the 12 tier?

Answer 1

Answer: 8192

Explanation:

If you want to use an equation, the equation to solve this problem is 4 • (2^x-1).

You're looking for the 12th row so replace 12 for x.

4 • (2^11) = 8192