<prompt> Denominator of infant moality rate is ?Per live bihPer 100 live bihsPer 1000 live bihsPer lakh live bihs  <response>: Infant moality rate is no.of deaths of children less than 1year of age in a year divided by no.of live bihs in the same year.REF.PARKS TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE.Editon-21.Page no.-523 