Q.1 Write the predecessor and successor of 19; 1997; 12000; 49; 100000.
The predecessor and successor are:
19:
Predecessor : 18
Successor : 20
1997:
Predecessor : 1996
Successor : 1998
12000
Predecessor : 11999
Successor : 12001
49:
Predecessor : 48
Successor : 50
100000:
Predecessor : 99999
Successor : 100001