List of top Logical Reasoning Questions on Series asked in Karnataka PGCET

A set of letters and numbers are arranged in certain order where some of them are missing. \[ 1 \quad \_ \quad 7g \quad \_ \quad c8 \quad \_ \quad \_ \quad b \] Choose the correct order of appearing in the missing places.

Look at this number series: 2, 6, 18, 54, ... What number should come next?