求助：OG12，数学DS部分的第161题的翻译和解答~~~~~

chongg3

161. Beginning in January of last year, Carl made deposits of $120 into his account on the 15th of each month for several consecutive months and then made withdrawals of $50from the account on the 15th of no other transactions in the account on the 15thof each of the remaining months of last year. There were no othertransactions in the account last year. If the closing balance of Carl’saccount for May last year was $2,600, what was the range of the monthlyclosing balance of Carl’s account last year?

1. Last year the closing balance of Carl’s account for April was less than $2,625.
2. Last year the closing balance of Carl’s account for June was less than $2,675.
答案 C

li小妖

同问，求解。。。