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Q. The sum of odd numbers from 10 to 60 is

  • (A) 775
  • (B) 468
  • (C) 921
  • (D) 875
  • Correct Answer - Option(D)
  • Views: 18
  • Filed under category Reasoning
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Explanation by: Admin

Sum to first n odd numbers {(59+1) /2}², because last odd number is 59. After solving above equation we got 900.
And sum to odd number 1 to 10 {(9+1) /2}² = 25 , hence 900-25 = 875

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