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 Payroll tax Job Interview Questions And Answers
Top Payroll tax Questions:
☺ | How do you think you might fit this position As Payroll tax? |
☺ | How would you estimate the weight of the Chrysler building? |
☺ | How many tennis balls can you fit into a limousine? 1,000? 10,000? 100,000? Seriously? |
☺ | Tell me an occasion when you needed to persuade someone to do something? |
☺ | How do you keep each member of the team involved and motivated? |
Top Financial Account Categories
☺ | CFO Interview Questions. |
☺ | Billing Specialist Interview Questions. |
☺ | Financial Controller Interview Questions. |
☺ | Hedge Fund Trader Interview Questions. |
☺ | Budget Analyst Interview Questions. |