2025 SJI P2 Q1

Andrew buys a new car in Singapore for S$168 000. In each of the first two years, the value of the car falls by 20%.

1. Find the value of the car at the end of the second year.[1]

After the first two years, the value of the car decreases by 15% in each subsequent year.

2. Find the value of Andrew’s car at the end of the 5th year, giving your answer to the nearest dollar.[2]

When Andrew has owned the car for \(n\) complete years, its value is less than 25% of its original price.

3. Find the least value of \(n\).[3]