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Gauss found the sum of the whole numbers from 1 to 100 to be:
A5050
B5500
C1000
D10000
Answer & Solution
Correct answer: A. 5050
1. He paired the list with its reverse.
2. That gives 100 pairs each summing to 101.
3. The sum is 5050.
_Source: NCERT Class 10 Mathematics, Chapter 5, Arithmetic Progressions._
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