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Answer : 1 48 Explanation : Answer: A) 48 Explanation: Take a Look at this series : 23 - 22 =  8 - 4 = 4  33 - 32 = 27 - 9 = 18 43 - 42 = 64 - 16 = 48  53 - 52 = 125 - 25 = 100  63 - 62 = 216 - 36 = 180 73 - 72 = 343 - 49 = 294 83 - 82 = 512 - 64 = 448

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