UPDATE 1-Brazil inflation reaches 3-mth high as cooking gas prices spike

(Updates throughout with additional information, context) By Bruno Federowski BRASILIA, Oct 20 (Reuters) - Brazil's inflation rate sped up to the fastest in three months in mid-October as cooking gas prices spiked, bolstering expectations that it has finally bottomed out after hitting 18-year lows. The reading should support the central bank's plan to slow the pace of interest rate cuts next week as the economy emerges from the deepest recession in over 100 years, even though inflat