Ask Question
16 December, 05:49

This one is hard, What number does it follow?

1,3,6,10,15,21,

+4
Answers (1)
  1. 16 December, 09:07
    0
    Its a sum of all previous iteration.

    1=1

    3=1+2

    6=1+2+3

    10=1+2+3+4

    15=1+2+3+4+5

    ...

    etc
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “This one is hard, What number does it follow? 1,3,6,10,15,21, ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers