Problem: the average age of 32 students in a group is 14 years . when teacher â € ™ s age is included to it , the average increases by one . what is the teacher â € ™ s age in years ?
Rationale: "sol . age of the teacher = ( 33 ã — 15 â € “ 32 ã — 14 ) years = 47 years . answer c"
annotated_formula: add(32, const_1)