Answer :
When it is 11pm in New York, you add five hours to get London time and then subtract three hours to get Rio time. The time in Rio when it is 11pm in New York is 1am the next day.
The student has a question regarding time zones and the calculation of time differences between various cities around the world. This is a mathematical problem where knowledge of the time zones and the concept of longitude is applied to determine local times in different parts of the world.
To find out what time it is in Rio when it is 11pm in New York, we need to understand the time difference between New York, London, and Rio. The Eastern Standard Time zone, where New York lies, is five hours behind the time at the Prime Meridian (UTC/GMT), and London's time zone is based on the Prime Meridian. Rio is three hours behind London.
Firstly, if it is 11pm in New York, we add five hours to get the London time, which makes it 4am the next day in London. Then, as Rio is three hours behind London, we subtract three hours from the London time to get the Rio time. Therefore, when it is 11pm in New York, it is 1am the next day in Rio.
If it’s 11pm in NY then it’s 4am in London... therefore it’s 1am in Rio.
