X*2.5%+(200000-X)*2.25%=4850

(2.5%-2.25%)* X = 4850-(200000 * 2.25%)

solve

x = 350/0.25% = 140000 = 140000。

200,000 x = 60,000 = 60,000

A: A deposit is 6,543,800 yuan+0.4 million yuan, and B deposit is 60,000 yuan.