1. If in 3 years at simple interest the principal increases by 18%, what will be the compound interest (in Rs) earned on Rs. 25,000 in 3 years at the same rate?
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By: anil on 05 May 2019 01.45 am
I = 18% of P I = PTR/100 $$frac{18P}{100}=frac{P(3)R}{100}
ightarrow R=6$$% Under CI, Total amount = P$$(1+frac{R}{100})^{n}$$ = 25000$$(1+frac{6}{100})^{3}$$ = 25000$$(1+frac{3}{50})^{3}$$ = 25000$$(frac{53}{50})^{3}$$ = 25000($$frac{148877}{125000}$$) = 29775.4 CI =29775.4 - 25000 = 4775.4 So the answer is option A.
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