digit sum

Home Community General Discussion digit sum

Viewing 2 posts - 1 through 2 (of 2 total)
  • Author
    Posts
  • #8532
    faruuq
    Participant
    • Topics Started: 1
    • Replies Written: 0
    • Total Posts: 1

    3986+2789=6775 digit sum=7

    however 6874 also got the same digit sum as the correct answer even though it is wrong

    can someone explain please?

    Thanks

    0
    #8533
    Abhishek R
    Keymaster
    • Topics Started: 0
    • Replies Written: 27
    • Total Posts: 27

    Hey Faruuq,

    Digit sum can only verify your answer with 90% accuracy.

    If you want a higher level of accuracy you can use the DS method in conjunction with the DD method. However even that is not 100%.

    The only way to be 100% sure your answer is correct, is to do the calculation again.

    Hope this clarifies.

    1+
Viewing 2 posts - 1 through 2 (of 2 total)
  • You must be logged in to reply to this topic.