# Discussion of Question with ID = 047 under Passwords-and-Inputs

## This is the discussion forum for this question. If you find any mistakes in the solution, or if you have a better solution, then this is the right place to discuss. A healthy discussion helps all of us, so you are requested to be polite and soft, even if you disagree with the views of others. The question and its current solution has also been given on this page.

### Question

"19 aero 66 84 unto bake 80 omen" is re-arranged according to a particular rule, in the steps mentioned below.

1. aero 19 66 84 unto bake 80 omen
2. aero 19 bake 84 unto 66 80 omen
3. aero 19 bake 66 unto 84 80 omen
4. aero 19 bake 66 omen 84 80 unto
5. aero 19 bake 66 omen 80 84 unto
6. aero 19 bake 66 omen 80 unto 84

If an input is: 04 21 33 fair dark 69 idle aero, then how many steps are required if re-arrangement is done according to the above rule?

A

6

B

5

C

4

D

7

Soln.
Ans: a

In each step, English words and numbers are alternately being arranged in ascending order. An English word is placed, then a number, and so on. These are the steps for re-arrangement starting with 04 21 33 fair dark 69 idle aero:

1. aero 21 33 fair dark 69 idle 04
2. aero 04 33 fair dark 69 idle 21
3. aero 04 dark fair 33 69 idle 21
4. aero 04 dark 21 33 69 idle fair
5. aero 04 dark 21 fair 69 idle 33
6. aero 04 dark 21 fair 33 idle 69