An Invoice for $2,500 Dated September 15 with Terms 2/10

Multiple Choice

An invoice for $2,500 dated September 15 with terms 2/10, 1½/20, n/30, EOM is received in the mail on September 20. A payment of $1500 is made on October 20. How much is credited to the account?

A) $1,522.50
B) $1,530.61
C) $1,560.60
D) $2,537.50
E) $1,522.84