Multiple Positions Under Same NOC, Hour Calculations

[jamilmuradov]

Hi!

Hope someone could help me!
I held two positions under the same NOC category. The positions have different duties.
I worked 20 hours in one position and 10 hours in another position. The reference letter indicates both but as separate positions.
Would my work experience be calculated as 30 hours per week or as 20 hours per week?