Select the number from among the given options that can replace the question mark (?) in the following series.
28, 39, 61, 94, 138, ?

Correct option is C

Given: 28, 39, 61, 94, 138, ?
Logic: The pattern in the series is an incrementing difference of 11 each step.
To determine the number that replaces the question mark in the given series
28, 39, 61,94, 138, let's analyze the pattern of differences between consecutive numbers.
39−28=11
61−39=22
138−94=44
We notice that the differences between the numbers are increasing by 11 each time:
11,22,33,44
Following this pattern, the next difference should be
44+11=55.
Now, we add this difference to the last number in the series:
138+55=193
Therefore, the number that replaces the question mark is (c) 193.