Option A
Interest rate paid by Samantha to bank is 8.6 %
Solution:
Given that George has a credit score of 650
Samantha has a credit score of 520
The bank approved George’s loan application at 5.6% interest
To find: Interest rate paid by samantha to the bank
From given information in question,
Interest charged on Samantha’s loan is 3 percentage points higher than the interest rate on George’s loan
Thus we get,
Interest charged on Samantha’s loan = 3 percentage points higher than the interest rate on George’s loan
Interest charged on Samantha’s loan = 3 % higher than the interest rate on George’s loan
Interest charged on Samantha’s loan = 3 % + interest rate on George’s loan
Thus substituting the given George’s loan application at 5.6% interest,
Interest charged on Samantha’s loan = 3 % + 5.6 % = 8.6 %
Thus interest rate paid by samantha to bank is 8.6 %