Explain the effects of Compounding your money?

Question

Explain to me using componding technique why a person who split 4000 into two different accounts each with 2000 each earning an interest of 10% per annum over 10 years will earn more interest as opposed to one who invest the whole 4000 in one account earning an interest of 10% over 10 years

Answer 1

They won't.  This is bunk.