Concept:Use simple interest formula: Amount = Principal + (Principal × Rate × Time)/100.Explanation:Let Principal be P.Rate R=8% per annum, Time T=6 years.Amount A=P(1+100RT​)=P(1+1008×6​)=P×1.48.Given A=370, so P=1.48370​=250.Thus, Principal is Rs. 250.Answer:Rs. 250