Suppose there are three light switches outside a room. Inside is a single light bulb, controlled by one of the three switches. You need to determine which switch operates the bulb. You can turn the switches on and off as many times as you wish (they are all off to begin with), but may only enter the room once. There is no one there to help you. The door to the room is closed, and there are no windows, so you cannot see inside. How can you discover which switch operates the bulb?
Submitted by: AdministratorDo the following steps:
☛ 1. Turn ON two switches, and leave one OFF.
☛ 2. Wait a few minutes.
☛ 3. Turn one switch from ON to OFF. One is now ON and two are OFF
☛ 4. Enter the room. - If the light is ON, it is controlled by the switch you left ON. - If the light bulb is OFF, touch it. If it is warm it is controlled by the switch you turned ON and OFF. If it is cold, it is controlled by the switch you never turned on.
Submitted by: Administrator
☛ 1. Turn ON two switches, and leave one OFF.
☛ 2. Wait a few minutes.
☛ 3. Turn one switch from ON to OFF. One is now ON and two are OFF
☛ 4. Enter the room. - If the light is ON, it is controlled by the switch you left ON. - If the light bulb is OFF, touch it. If it is warm it is controlled by the switch you turned ON and OFF. If it is cold, it is controlled by the switch you never turned on.
Submitted by: Administrator
Read Online USM Business Systems Job Interview Questions And Answers
Top USM Business Systems Questions:
☺ | What's the least rewarding work you've ever done and why? |
☺ | Tell me about a time when you had to make a decision without all the information you needed. How did you handle it At USM Business Systems? Why? Were you happy with the outcome? |
☺ | The change in the business industry now requires you to have a new set of skills you have to learn, how do you react to that? |
☺ | Top 17 Behavioral Interview Questions At USM Business Systems: |
☺ | What is your desired salary At USM Business Systems? |
Top Business and Economics Categories
☺ | Taxation Interview Questions. |
☺ | Economics Interview Questions. |
☺ | Accounts Receivable (AR) Interview Questions. |
☺ | General Ledger Interview Questions. |
☺ | Fixed Assets Interview Questions. |