1.

Find the interest and amount on: (a) ₹750 in 3 years 4 months at 10% per annum.(b) ₹5000 at 8% per year from 23rd December 2011 to 29th July 2012.​

Answer»

a) PRINCIPAL (P)= ₹750Time (T)=3 years 4 months = 40 months = 40/12 yearsRate (R) = 10 % PER annumsimple INTEREST = P x RxT/100 => ₹750x10x 40/100x12 => ₹250Interest (I)=₹250Amount = P+I=₹750+₹250 = 1000₹



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