Waec Model Questions Vol1 2019 Commerce Question 33

A consumer bought a washing machine for ₦85,000. The machine came with a 2‑year guarantee covering any manufacturing defect. After 9 months the machine stopped working because of a motor fault. The consumer prefers a refund. Under the Consumer Protection Act, the consumer is entitled to a refund of the purchase price minus a depreciation of 15% per completed year of ownership, plus compensation for loss of use calculated as 10% of the purchase price for each month the machine was out of service before the refund was processed. The retailer took 28 days (approximately 1 month) to process the refund after the complaint was lodged. In addition, the retailer must pay simple interest at 2% per month on the total amount due, calculated for the same 1‑month period. What total amount should the consumer receive?