Discover answers to your questions with Westonci.ca, the leading Q&A platform that connects you with knowledgeable experts. Experience the ease of finding quick and accurate answers to your questions from professionals on our platform. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.

You can buy an item for $140 on an in-store payment plan with the promise to pay $140 in 90 days. Suppose you can buy an identical item for $128 cash. If you buy the item for $140, you are in effect paying $12 for the use of $128 for three months. What is the effective annual rate of interest

Sagot :

Answer:

the effective annual rate of interest is 37.50%

Explanation:

The computation of the effective annual rate of interest is as follows:

Interest = Principal × rate × time period

$12 = $128 × rate × 3 months ÷ 12 months  

$48 = $128 × rate

rate = 37.50%

Hence, the effective annual rate of interest is 37.50%

We simply applied the above formula so that the correct annual rate could come