Maybe the image outlined below should solve your issue:
In the survey tab of your xlsform:
In the choices tab of your xlsform:
Data entry screen as seen in Enketo: condition for Q1 met
Data entry screen as seen in Enketo: condition for Q1 & Q2 met
Data entry screen as seen in Enketo: condition for Q2 met
Data entry screen as seen in Enketo: condition for neither Q1 nor Q2 met
Reference xlsform:
Calculation.xlsx (11.6 KB)