Question

a certain sum amounts to rupees 798.60 after 3 years and rupees 878.46 after 4 years find the interest rate and the sum explain with full solution

Answer 1

[tex]\text{Amount obtained through simple interest, }A=P(1+rt)\\ \text{Hence, } P(1+3r)=798.60 \text{ and } P(1+4r)=878.46\\ \Rightarrow rP=79.86 \text{ and } P=559.02\\ \therefore r=\frac{100}{7} \%=14.2857\% \text{ p.a.}[/tex]

Answer 2

Answer:

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