A sum was invested at simple interest . At the end of four years , the total interest was equal to the sum . At the end of five years the tofal interest was 12500. Find the interest on the sum at the end of three years (in ₹)
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Answer:
Principle amount= Rs. x
Interest in one year=x/4
Interest in 4 years =x
interest in 5 years=(x/4)×5=12500
= x/4=12500/5
=x/4=2500
=x=2500×4
x=10000
so, interest in 4 years = principle amount = Rs. 10000
interest at the end of 3 years =(x/4)×3=2500×3
=Rs. 7500
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