In 2008, how to do the fourth question of 26 mathematics questions for junior high school graduates in Ningbo?
(3) Suppose Xiaoming's father's deposit has been deposited for X days before the transfer.
l 0000××0.72%+ 10000××3.06% & gt； 10000× 2.79%, ... 8 points.
Get x
When his deposit has been deposited no more than 4 1 day before the transfer; He should transfer it; Otherwise, there is no need to transfer .......................... 10.