Question

Irfan deposits rupees 10000 in a bank for a certain time and gets rupees 600 as interest if it in posits 8000 are they same rate of interest for the same time period then find the interest he will get at the end ​

Answer 1

Interest at the end for 8000 rs principle amount = 750 rs

Step-by-step explanation:

$\textbf{Formula of Interest = }\frac{P* R* T}{100} \\\\\textbf{Firstly for principle P1 = 10,000 rs, Interest was I1 = 600 rs}\\\\\\\textbf{Then principle P2 = 8,000 rs ,and Interest is I2 }\\\textbf{Rate and Time are same in both case.So }\\\\\text{Dividing I2/I1 =}\frac{(P1RT)/100} {(P2RT)/100} \\\\\\\\\\\textbf{I2/600 =P1/P2}\\ \\\\\text{Multiplying both sides by I1 = 600}\\\textbf{ So Interest I2 = (10,000/8000)*600}\\\\\textbf{So Interest = (10*600)/8 = 750 rs}$