Do this sum in your head. Take 1000 and add 40 to it. Now add another 1000 . Now add 30 . Add another 1000. Now add 20 . Now add another 1000 Now add 10 . What is the total? Scroll down for answer..... Did you get 5000? The correct answer is actually 4100. If you don't believe it, check it with a calculator!
A lot of people say 5000 - because they're adding 1000's and 10's at the same time, and when they get to the end they convert the 10's to 100's and say 5000 Soon, someone will admit to reaching 5000