A set of numbers has the property that for any number x in the set, x+1 is also in the set. If -1 is in the set, which of the following must also be in the set
1. 2
2. 0
3. -2
Select
A) 1 only  B) 2 only  C) 1 and 2 only  D) 2 and 3 only  E) 1,2 and 3
If X is in the set than X+ 1 is also in the set   If -1 in the set than    -1+1= 
<gadget id="calculator"> -1+1</gadget>
<output>0</output>
0 is also in the set   Since + 1 is Present, 1 + 1= 2 Is also present in the set .   Therefore Ans 1 and 2 only
<result>C</result>
A set of numbers has the property that for any number x in the set, x+1 is also in the set. If -1 is in the set, which of the following must also be in the set
1. 2
2. 0
3. -2