Question

please answer this question

Answer 1

$<b >Hey here is your answer$

here,

1 = 1
1 + 2 = 3
1 + 2 + 3 = 6
1 + 2 + 3 + 4 = 10 (but given 11)
1 + 2 + 3 + 4 + 5 = 15
1 + 2 + 3 + 4 + 5 + 6 = 21

So , here is only one term that is not matched that is 11.

So, your answer is 11.

hope this helps you dear.

### BE BRAINLY ###