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Question

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

A
8th generation
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B
9th generation
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C
10th generation
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D
11th generation
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Solution

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



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