At the beginning of last year, a's deposit was three times that of B. at the beginning of this year, compared with the beginning of last year, a had 500 yuan more and B had 2000 yuan more. At this time, a's deposit was two times that of B. at the beginning of this year, how many yuan did a deposit this year and how many yuan did B deposit?

At the beginning of last year, a's deposit was three times that of B. at the beginning of this year, compared with the beginning of last year, a had 500 yuan more and B had 2000 yuan more. At this time, a's deposit was two times that of B. at the beginning of this year, how many yuan did a deposit this year and how many yuan did B deposit?

Suppose last year B had X Yuan and a had 3x yuan
therefore
（3x+500）=2（x+2000）
3x+500=2x+4000
x=3500
A last year: 3500 × 3 = 10500 yuan
B last year: 3500 yuan
A: 10500 + 500 = 11000 yuan this year
B this year: 3500 + 2000 = 5500 yuan