Given:
The amount that is to be paid to buy a scooter = 44000
The amount that he paid by cash = ₹8000
Remaining balance = ₹36000
Annual instalment = ₹4000 + interest@10% on the unpaid amount

Thus, our instalments are 7600, 7200, 6800…….

= 9
So our instalments are 7600, 7200, 6800 … up to 9 terms.
Hint: – All our instalments are in A.P with a common difference of 400.
Here
First term, a = 7200
Common difference = d = 7200 – 7600
d = – 400
Number of terms = 9

Hence,
The total cost of the scooter = amount that is paid earlier + amount paid in 9
instalments.
= 8000 + 54000
= 62000
∴The total cost paid by Arun = 62000