[Solved] Sum the values of a nested for loops

In your code, i takes values from 0, 1, 2, 3 and 4 & j takes values as:

i Value               j Values
   0             0, 1, 2, 3, 4
   1                1, 2, 3, 4
   2                   2, 3, 4
   3                      3, 4
   4                         4

Now, add up all the values that j takes and see what the sum is!