Question

How many members will be there in the 6th generation of a family tree?

• A. 64

Answer 1

The correct option is A 64
Every generation of a family tree has double the number of members in the previous generation.

Starting from the current generation (1 member),
First generation $=1\times 2=2\text{members}$

Second generation $=2\times 2=4\text{members}$

Third generation $=4\times 2=8\text{members}$

Fourth generation $=8\times 2=16\text{members}$

Fifth generation $=16\times 2=32\text{members}$

Sixth generation $=32\times 2=64\text{members}$