What will come in place of the question mark (?) in the following number series? 5, 13, 25, 41, 61, ? MCQ with Answer and Explanation

Explanation:
The pattern is: 11×2=22, 22×2.5=55, 55×3=165. The multiplier increases by 0.5 each time. The next multiplier is 3.5. Therefore, 165×3.5=577.5.[reference:11]

Explanation:
The differences are: 4, 6, 8, 10. These are increasing by 2. The next difference is 12. Therefore, 31+12=43.

Explanation:
Each term is obtained by multiplying by 2 and adding 1. (2×2)+1=5, (5×2)+1=11, (11×2)+1=23. The next term is (23×2)+1=47.