Answer:
Addition = 3656999
Explanation:
Predecessor of number = (Number - 1)
Predecessor of 365000 = 365000 - 1
= 364999
Successor of a number = (Number + 1)
Successor of 3291999 = 3291999 + 1
= 3292000
Now we have have to add the predecessor of 365000 and successor of 3291999,
364999 + 3292000 = 3656999
In other words addition of predecessor of any number and successor of other number will be same as the sum of both the numbers.