IBPS PO Mains 2017 Paper for online practice

Solutions (56-59):
In the given arrangement the first and the second places are occupied by words; the third and the fourth by numbers; the fifth and the sixth by words; and the seventh and the eighth by numbers. Words occupy place in alphabetical order while numbers occupy place in descending order.
Whenever a word or a number gets arranged other elements shift one place rightward.
Since it is a case of 'Arrangement', previous steps can't be obtained with certainty.