Neco Model Questions Vol1 2017 Civic Education Question 5

The Corruption Perception Index (CPI) for a country was 32 in 2015 and improved to 38 in 2018 (scale 0-100, lower scores indicate higher perceived corruption). Anti‑corruption reforms implemented over this period included: (i) establishing an anti‑corruption agency costing \(\text{₦}5\) billion annually, (ii) increasing public‑sector salaries by \(12\%\) (the public‑sector payroll was \(\text{₦}150\) billion annually before the increase), and (iii) a whistle‑blower reward equal to \(5\%\) of recovered assets (total recovered assets amounted to \(\text{₦}200\) billion). Assuming the reforms lasted the full three years from 2015 to 2018, calculate the total monetary cost of the reforms (sum of agency cost, salary‑increase cost, and whistle‑blower rewards). Then determine the cost per CPI point increase (total cost divided by the CPI increase). Give your final answer in billions of naira, rounded to two decimal places.