Number properties

[mttorii]

Is ab=1?

(1) aba=a
(2) bab=b

OA: e

[rhymes_with_luck]

Can you please provide source of this q?

aba=a

let a != 0

then ab= 1

but if a=0

then ab =0

same for stmt 2

combine and put non zero/zero value same discrepancy will come.
So, E

[vish150783]

If we assume A and B not equal to zero then either statement is valid. But if this assumption is not provided in the question. The answer is E.

My answer is E.

[mttorii]

This question is from a non official material.

[mttorii]

This question is from a non official material.

[aj5105]

(1) can be 1,1 or -1,-1

(2) same case

(1) + (2)

Can be 1,1 or -1,-1.

(E)