A sum of Rs. 8,000 is in invested for 1 year at 10% per annum compound interest. Calculate interest for the first year. Share with your friends Share 0 Smoke Queen answered this Please find this answer 1 View Full Answer Irene Sara Biju answered this the answer is simple.... P= 8000 Rate= 10% Time= 1 yr amount= P(1+R\100) to the power of time.. this is the formulae... answer is easy to find... 1 Iron Man answered this dftgh -1 Amritha S answered this Ptr by 100 -1 Nehal Jaswal answered this Please find this answer 1 Jay answered this According to me answer is 800 -1