An Organization for Economic Cooperation and Development (OECD) survey has scored South Korean adults below average in some skills.

The OECD conducted the international survey of 150-thousand people between the ages of 16 and 65 in 24 member nations to measure key cognitive and workplace skills.

South Korea scored an average 273 in adult language skills but received a 263 in numerical skills, which is six points lower than the OECD average.

South Korean adults' skills in problem solving in technology-rich environments were measured at 30 percent, four percentage points lower than the OECD average.

South Koreans between the ages of 16 and 24, however, scored higher than OECD averages by an average of 15 points in the three categories.

The Program for the International Assessment of Adult Competencies (PIAAC) was newly launched by the OECD this year. It will conduct the survey every five years.