Question
19   20   42   129   ?    2605Â
 .  What should come in place of the question mark (?) in the following number series?Solution
19 × 1 + 1 = 20 20 × 2 + 2 = 42 42 × 3 + 3 = 129 129 × 4 + 4 = 520 520 × 5 + 5 = 2605
More Series Questions
351Â Â Â 261Â Â Â 181Â Â Â 111Â Â Â 51Â Â Â ?
Find the 31st term of the series 25, 29, 33……
632, 560, 494, 434, ?, 332
1331      1000            729       512       ?             216
...2556   636    156    ?    6
3 5 15 75 1125 ?
...1. In series II, if ‘x’ is the right term, then find which of the following statement(s) are true.
I. x/124 is a factor 6 and 8.
73920, 9240, ?, 220, 44, 11
12 78 385 ? 4629 9260
...A number series is given below, which follows a specific pattern. If 'A' represents the 'x'th term and 'B' represents ...
Relevant for Exams:
