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### What is the difference between predecessor and successor when drawing activity on arrow in it project management?

Successor is the number that comes just after a particular
number is called its successor.
Ex: Successor of 823 is 824 , Successor of 3424 is 3425
Predecessor is the number that comes just before a particular
number is called its predecessor.
Ex: 999 is the predecessor of 1000, 2367 is the predecessor of
2368
Some more Example on Successor are
Successor of 589 is 590
3724 is 3725
5099 is 5100
7009 is 7010
4836 is 4837
6149 is 6150
Some more examples on predecessor are
495 is predecessor of 496
999 is predecessor of 1000
7054 is predecessor of 7055
6825 is predecessor of 6826
3209 is predecessor of 3210
9998 is predecessor of 9999

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