Question
17Â Â Â 9Â Â Â 10Â Â Â 16.5Â Â Â 35Â Â Â
 ?    273 Find the missing number in the following number series:Solution
17 x 0.5 + 0.5 = 9Â 9 x 1 + 1 = 10Â 10 x 1.5 + 1.5 = 16.5 16.5 x 2 + 2 = 35Â 35 x 2.5 + 2.5 = 90 Â 90 x 3 + 3 = 273
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