Loan repayment question. Please help! (1 Viewer)

Illest

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A family bought a car for $38000, paying a 10% deposit and taking out a loan for the balance. If the loan is over 5 years with interest of 1.5% monthly, find the amount of each monthly payment.

I'm stuck... I don't understand the deposit part. I tried taking P=38000 x 0.9 and calculating the rest but I got the wrong answer :(

Someone please help ~
 

wootwoot1234

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For this question, everything would remain the same except for the loan that is repaid. Since a 10% deposit is payed, the loan will only consist of the balance i.e. 38 000 - 3800 = 34 200.

The amount owing would be $34 200.
Period -> 5 years x monthly interest = 12.
Interest -> 1.5% divided by 12.

Is this question from Maths in Focus? I had the same problem. It was just worded badly. I think the problem is your interest - must be divided by 12.
 
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wootwoot1234

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Yep, I tried that, doesn't work though :(
Did you divide 1.5% interest by 12? I had the same problem; although it says 1.5% monthly interest, you have to divide by twelve to get right answer. I think it was a typo.
 

Illest

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Did you divide 1.5% interest by 12? I had the same problem; although it says 1.5% monthly interest, you have to divide by twelve to get right answer. I think it was a typo.
Success! It was a typo. Thank you :)
 

Drongoski

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Let $M be the equal monthly repayment and $Ai the amount still owing after the i-th repayment. Loan amount = 0.9 x $38000 = $34200 = $P







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But A60 = 0 (fully paid up after 60 repayments)

 
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