prp  qrp  prr  pqr  qrp  rpr  qqr  rpr  qpr  qrr qpr  qpr

If every third letter starting from the left is replaced by a number beginning with 1 then which letter/ number will be 16th from the right?

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
XIIIII, IXIIII, IIXIII, IIIXII,IIIIXI, ?

In the following question, select the missing number from the given series.

13, 17, 19, 23, 29, ?

In the following question, select the missing number from the given series.

470, 465, 460, 455, ?, 445

In the following question, select the missing number from the given series.

63, 56, 50, 43, 37, 30, ?

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.
6, 18, 54, ? , 486, 1458

In the following question, select the missing number from the given series.

46, 41, 35, 30, ?, 19, 13

In the following question, select the missing number from the given series.

1728, 864, 432, 216, ?