How can you tell if a door is open or closed?
If we observe it properly, then we find that the final status of a door numbered i is open if ‘i’ has odd number of factors and status is closed if ‘i’ has even number of factors. It does not depend in which sequence the status of doors are changed.
How can I change the status of a door?
Initially all the doors have status closed. Find the final status of all the doors if a person changes the current status of all the doors, i.e. if status open then change to status closed and vice versa, for which he is authorized. A person with id ‘i’ is authorized to change the status of door numbered ‘j’ if ‘j’ is a multiple of ‘i’.
What was the significance of the Open Door Policy?
The articulation of the Open Door policy represented the growing American interest and involvement in East Asia at the turn of the century. Ironically, Hay articulated the Open Door policy at a time when the U.S. Government was doing everything in its power to close the door on Chinese immigration to the United States.
How to find the final status of a door numbered I?
Recommended: Please solve it on “ PRACTICE ” first, before moving on to the solution. Approach: It is mathematical and logical approach. If we observe it properly, then we find that the final status of a door numbered i is open if ‘i’ has odd number of factors and status is closed if ‘i’ has even number of factors.
What does it mean when a door won’t stay open?
WHEN a door won’t stay open or closed by itself – that is, when it tends to swing slowly closed after it has been left open, or when it swings slowly open and won’t stay in the partly closed position unless latched shut – chances are that the door jamb is out of plumb.
Initially all the doors have status closed. Find the final status of all the doors if a person changes the current status of all the doors, i.e. if status open then change to status closed and vice versa, for which he is authorized. A person with id ‘i’ is authorized to change the status of door numbered ‘j’ if ‘j’ is a multiple of ‘i’.
Can a wire be faulted when the door is closed?
If we program for Normally Closed, but wire Normally Open, the system will tell us the door is faulted when it’s closed, and that it’s in the normal condition when it’s open. When replacing an existing contact, you also need to know if the contact being replaced was normally open or closed, especially if more than one contact is wired into a zone.
Recommended: Please solve it on “ PRACTICE ” first, before moving on to the solution. Approach: It is mathematical and logical approach. If we observe it properly, then we find that the final status of a door numbered i is open if ‘i’ has odd number of factors and status is closed if ‘i’ has even number of factors.