try answering this one,,,,,only if u think u r smart????????????

try doing this in ur mind only no use of paper o pencil............

all the best.............


...................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......watz ur total????












if ur total was 5000.....u r sooo wrong






now check it with ur calculator




u get 4100




itz amazing isint it??????????