What is missing number term in the given series?
3, 7, 13, ?, 31
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 21
The differences between the terms are the even numbers 4, 6, 8, 10.
\(3+4=7\), \(7+6=13\)
\(13+8=21\)
\(21+10=31\), which agrees with the last term