What sum of money should be invested for 5 years at 18%p.a. to earn intrest as rupees3600 at 10%p.a. for 4 years??



Dear Student,

SI in the case of principal=3600, rate of interest=10% per annum and time=4 years.SI=PRT100=3600×10×4100=1440Now, to calculate Principal for the same SI at rate of interest=18%per annum and time 5 years.SI=PRT1001440=P×18×5100P=1440×10090=1600So,  1600 should be invested.


Regards

 

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