Neco 2021 Civic Education Question 3

A national survey on drug abuse among secondary school students was carried out in 2020 and again in 2022. In 2020, out of a sample of 2,500 students, \(12\%\) reported having used cannabis at least once and \(8\%\) reported having used inhalants; the overlap between the two groups was negligible. In 2022, a sample of 3,000 students was surveyed. The number of students who had used cannabis increased by \(25\%\) relative to the 2020 number, while the number who had used inhalants decreased by \(15\%\) relative to the 2020 number. Additionally, \(5\%\) of the 2022 respondents reported having used both cannabis and inhalants. What percentage of the 2022 sample had used either cannabis or inhalants (or both)? Express your answer to one decimal place.