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Is the sum 1 + 2 + 3 + … + 50 odd or even?

Class 8Parity, Remainders and Digital RootsNumber System
  • AIt cannot be decided
  • BOdd
  • CNeither
  • DEven

Step-by-Step Solution

Among 1 to 50 there are 25 odd numbers. An odd count of odd numbers adds to an odd number. (The sum is 1275.)
Answer: B) Odd

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