NPV – Timing of Asset purchase at the end of an accounting period

I am unable to understand the following additional question available in Kaplan Book, Chapter # 4:

A company buys an asset on the last day of the accounting period for $ 26,000. It will be used on a project for three years after which it will be disposed of. Tax is payable @ 30% one year in arrears, an tax allowable depreciation @ 25% reducing balance.

If possible, use the format, first arrive at tax profits and then net cash flows for discounting purpose.

Thanks.