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Two consecutive whole numbers are added. Karan says their sum is always an odd number.
Test with 4 + 5 and 7 + 8. Is Karan correct?

Class 6Properties of Whole NumbersWhole Numbers
  • AYes, the sum of two consecutive whole numbers is always odd
  • BNo, it is always even
  • CIt is sometimes odd and sometimes even
  • DIt is always a multiple of 3

Step-by-Step Solution

4 + 5 = 9 (odd) and 7 + 8 = 15 (odd). One of any two consecutive numbers is even and the other odd, so their sum is always odd.
Answer: A) Yes, the sum of two consecutive whole numbers is always odd

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