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Question

The value of
  (0.96)3 - (0.1)3  is : (0.96)2 + 0.096 + (0.1)2

Options:
A .  0.86
B .  0.95
C .  0.97
D .  1.06
E .  None of these
Answer: Option A
 -    Given expression  =  (0.96)3 - (0.1)3 (0.96)2 + (0.96 x 0.1) + (0.1)2   =    a3 - b3   a2 + ab + b2  
= (a - b)  
= (0.96 - 0.1)   = 0.86    

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