@botani, you could do the same as outlined in the image shared below:
In the survey tab of your XLSForm:
In the choices tab of your XLSForm:
Data entry screen as seen in Enketo (when Q1 = Q2):
Data entry screen as seen in Enketo (when Q1 > Q2):
Data entry screen as seen in Enketo (when Q1 < Q2):
Reference XLSForm:
Range Question Type.xlsx (10.8 KB)