alleryA person has 2 parents, 4 grandparents, 8 great grandparents and so on. Over ten generations the ancestors total:
A1023
B2046
C1024
D2048
Answer & Solution
Correct answer: B. 2046
1. This is a G.P. with a equal to 2 and r equal to 2.
2. Sum ten terms.
3. The total is 2046.
_Source: syllabus Mathematics, Chapter 8, Sequences and Series._
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