Q. 165.0( 1 Vote )

If 6 A × B = A 8 B, then the value of A – B is
A. -2

B. 2

C. -3

D. 3

Answer :

6 A × B = A 8 B

AB = B


⇒ A = 1


6B = A8


⇒ 6B = 18


⇒ B = 3


A – B = 1 – 3 = -2

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