Question

If a and b are whole numbers then which of the following statement is not correct 1 a+b= b+a 2ab=ba 3a-b=b-a 4none of these

Answer 1

Answer:

3rd option :- a-b= b-a is not correct

Step-by-step explanation:

Let us say that a be 4 and b be 6

1st option says a+b= b+a

4+6=6+4

10 =10

2nd option says ab= ba

4×6=6×4

20 =20

3rd option says a-b= b-a

4-6=6-4

-2 = 2

Therefore 3rd option is not correct