Solve the series: 11,17,25,35,47.........

Sum of the series 1+2.3+3.5+4.7+....... up to 11 terms is

Which term of the series 3+7+11+15+......... is 47?

The following question, a series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series. 5, 11, 17, 25, 33, 43, ?

11, 12, 20, 47, ….

Sum up the following series :- -15-11-7 .......+17.

How many terms of the series 15+11+7...... has the sum 35?

The following question, a series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series. 5, 11, 23, 47, 95, ?

Choose the correct alternative that will replace the question mark in the given series 11, 13, 17, 19, 23, 25, ?