Math, asked by saketh9637, 1 year ago

If rani gives an interest of rs.45 for one year at 9% rate per annum what is the sum she had borrowed

Answers

Answered by ayushman51
1

=> Simple Interest = P x R x T/100 or PRT/100

=> PRINCIPAL = lets consider it as x

=> Rate of interest = 9%

=> Time period = 1 year

=> Simple interest = 45

=> Simple interest = PRT / 100

=> 45 = x( principal ) x 9 x 1 / 100

=> 45 = X x 9 / 100

=> 45 = x9/100

=> 45 = 9x / 100

=> 45 x 100 / 9 = x

=> 5 x 100 = x

=> 500 = x

=> x = 500 is the sum

Amount = Principal + Interest

=> 500 + 45

=> 545 is the total amount which was borrowed .

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