Identify the type of code used by a trading company Ms. Ahana Ltd.:
| Codes | Accounts |
| CA005 | Super Ltd. |
| CA006 | Regina Ltd. |
| CA007 | Nasir & Sons Ltd. |

A ladder of fixed length \( h \) is to be placed along the wall such that it is free to move along the height of the wall.
Based upon the above information, answer the following questions:
(iii) (b) If the foot of the ladder, whose length is 5 m, is being pulled towards the wall such that the rate of decrease of distance \( y \) is \( 2 \, \text{m/s} \), then at what rate is the height on the wall \( x \) increasing when the foot of the ladder is 3 m away from the wall?