(iii)In a Bi-purpose Higher Secondary School with provision for Humanities and Natural Sciences, there should be one post of assistant teacher in the scale of RS. 150-10-200-E.B.- 10-250, four posts of assistant the scale of Rs. 125-5-160-E.B.-5-200 and the remaining posts of assistant teachers with Master's or Honour's degrees (trained or untrained) in the scale of Rs. 100-5-125-E.B.-4-145-E.B.-3-175.