Exercise 15.5.6 Some credit card companies give you a refund at the end of the y

Question

Exercise 15.5.6 Some credit card companies give you a refund at the end of the year
depending on how much you’ve used the card. Imagine a company that pays back

• 0.25% of the first $500 you charge;

• 0.50% of the next $1000 you charge (i.e. anything you charge between $500 and
$1500);

• 0.75% of the next $1000 you charge (i.e. between $1500 and $2500);

• 1% of anything you charge over $2500.

For example, a customer who charged $400 would get back $1.00, which is 0.25% of $400.
A customer who charged $1400 would get back 0.25% of the first $500 (making $1.25), plus
0.50% of the next $900 (i.e. $4.50), for a total refund of $5.75.

Develop a function card-refund to determine how much refund will be paid to a
customer who has charged a specified amount on the card.

Explanation / Answer

Dear, Here is the code (define (bank-interest-rate amountUsed); amountUsed a number in dollars
pay=0
(cond [(<amountUsed 500)+pay(*amountUseed .25)]
       [and(<amountUsed 1500)
            (>amountUsed 500) +pay(*amountUseed .50]
       [and(<amountUsed 2500)
            (>amountUsed 1500) +pay(*amountUseed .75]
        [>amountUsed 2500) +pay(*amountUseed .1]   Hope this will help you

Related Questions

Navigate

• Browse (All)
• Browse E
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.