Question

The number of terms to be taken so that 1 + 2 + 4 + 8 + will be 8191 is​

Answer 1

Step-by-step explanation:

n-1+n=8191

n=8192/2=4096=2^12

Since 2^0=1st term and 2^1=2nd term, then 2^12 is the 13th term to be added to get the sum 8,191.