What will come in place of the question mark (?) in the following series?
6, 50, 11, 44, 16, 38, ?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 21
The terms jump up and down, so read the terms in odd places and in even places as two separate series:
Odd places: 6, 11, 16, ?, each 5 more than the one before
Even places: 50, 44, 38, each 6 less than the one before
The question mark is in the 7th place, an odd place, so it is \(16+5=21\).