Questions from Mental ability
Q : If A denotes +, B denotes –, C denotes × and D denotes ÷, which of the following statements is true?
(A) 3A3B3C3A3D3 = 4
(B) 8A8B8C8 = –48
(C) 8B6D2A4C3 = 15
(D) 9C9B9D9A9 = 1
