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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