Final answer:
The amount of cash received by Kelsey Company on January 14 is $1,164 after deducting the discount.
Step-by-step explanation:
The amount of cash received by Kelsey Company on January 14 is $1,164. Buyers Co. returned merchandise worth $300, so the remaining balance due is $1,200. Since the terms are 3/10, n/30, the buyer is entitled to a 3% discount if payment is made within 10 days. Thus, the buyer will receive a discount of $1,200 * 3% = $36. Therefore, the amount of cash received by Kelsey Company on January 14 is $1,200 - $36 = $1,164.