Which of the following numbers will replace the question mark (?) in the given series?
3, 7, 13, 21, 31, ?
A43
B41
C42
D44
A43
B41
C42
D44
Related Questions:
Which of the following addresses are identical to each other:
1. Dr Ruchi Jain 4/88, Skyline Residency, Jaipur, 302001
2. Dr. Ruchi Jain 4/88, Skyline Residency, Jaipur, 302001
3. Dr. Ruchi Jain 4/88, Skyline Residency, Jaipur, 302001
4. Dr Ruchi Jain 4/88, Skyline Residency, Jaipur, 302001