Question

Harry owes the bank money. To repay his debt, he paid

$
150
$150dollar sign, 150 back to the bank each month. After
10
1010 months, his remaining debt was
$
6900
$6900dollar sign, 6900.
What was the original amount of Harry's debt?
$
$dollar sign

How long did it take Harry to pay back his entire debt?

months

Answer 1

Original owed is $8400 and it took 56 months. This is the answer on Khan.

Explanation:

L = 6900 + 150 x 10 = 8400

8400 = 0+150t

150t = 8400

t = 56

Answer 2

A. The original amount of Harry's debt was US$ 8,400.

B. It will take Harry 46 months or 3 years and 10 months to pay back his entire debt.

Completing correctly the statement and the questions:

Harry pays US$ 150 monthly to the bank, after 10 months his remaining debt was US$ 6,900. Question A: What was the original amount of Harry's debt?, question B. How long (in months) did it take Harry to pay back his entire debt?

Explanation:

1. Let's review the information given to answer the questions correctly:

Monthly payment = US$ 150

Months that Harry had paid = 10

Balance after 10 months = US$ 6,900

2. Let's calculate the original amount

Original amount = Balance after 10 months + (Monthly payment * Months already paid)

Original amount = 6,900 + (150 *10)

Original amount = 6,900 + 1,500

Original amount = 8,400

3. Let's calculate how long did it take Harry to pay back his entire debt

Time to pay the entire debt in months = Balance after 10 months/ Monthly payment

Time to pay the entire debt in months =6,900/ 150

Time to pay the entire debt in months = 46