Question

For a given family, which generation in a given family has 512 members?

• A. 8th generation
• B. 9th generation
• C. 10th generation
• D. 11th generation

Answer 1

The correct option is C 10th generation

Consider a family tree such that
Number of members in 1st generation = 1
Members in 2nd generation = 2x1 = 2
Members in 3rd generation = 2x2 = 4
Members in 4th generation = 2x4 = 8
Members in 5th generation = 2x8 = 16
Members in 6th generation = 32
Members in 7th generation = 64
Members in 8th generation = 128
Members in 9th generation = 256
Members in 10th generation = 512