Question

Amount= ₹ 540, T=4 yrs,Rate = 5% per annum the prinicpal amount =?

ANSWER IS ₹450 .
HOW IT IS CAME GIVE EXPLANATION


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Answer 1

Answer:

P=Rs.450, A=Rs.540, n=4 years at simple interest

SI=A-P=90

SI=Pnr/100=90

we get r=5%

A=637.50 and n= 5years, r =5%

A=P+SI

using the above formula calculate P=510