Question

What is the sum of the geometric series 20 + 21 + 22 + 23 + 24 + … + 29? 1,023 511 2,407 1,012 NextReset

Answer 1

1023

Explanation:

2^0+2^1+2^2+2^3+2^4+2^5+2^6+2^7+2^8+2^9

1+2+8+16+32+64+128+256+512=1023

Answer 2

511 is the correct answer