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Over ten generations, a person's ancestors sum to 2046, computed using the sum formula of a:
AGeometric progression
BArithmetic progression
CFibonacci sequence
DList of prime numbers
Answer & Solution
Correct answer: A. Geometric progression
1. 2, 4, 8 and so on double each time.
2. Doubling means a constant ratio.
3. So the G.P. sum formula gives 2046.
_Source: NCERT Class 11 Mathematics, Chapter 8, Sequences and Series._
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