Question
11Â Â Â 6Â Â Â 7Â Â Â 12Â Â Â 26Â Â Â
 ?    205.5 What will come in place of the question mark (?) in the following series?Solution
11 x 0.5 + 0.5 = 6Â 6 x 1 + 1 = 7Â 7 x 1.5 + 1.5 = 12 12 x 2 + 2 = 26 26 x 2.5 + 2.5 = 67.5 Â 67.5 x 3 + 3 = 205.5
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