Question

3.
The last term of the series 1, 2, 4, ... to 10 terms is
a) 512
b) 256
c) 1024
d) None​

Answer 1

Answer:

$l = a + (n - 1)d \\ l = 1 + 9 \times 1 \\ l = 10$

d none of the above

Answer 2

Answer:

I thought d) option none

my answer is may be wrong.