8th term of the following series will be : 2, 6, 18, 54, ...

The 6th term in the following series ab² + bc² + cd² + de² + ...... is

Find the next term of the following number series : 10, 12, 16, 24, 40, ….

Which term is wrong in the following series? 8, 13, 21, 32, 47, 63, 83

What will be the next number in the following number series? 48, 24, 72, 36, 108, ?

Find the next term in the following number series : 2, 7, 24, 77, 238, ……..