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" The ratio of interest between compound and
interest
after two years on a sum of money to that aftor three
years on the same sum, at the same rate is 10:37. what
will be the rate of interest
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Answer:
Simple Interest for one year =Pr/100
Amount after 2 years compounded yearly=P(1+r/100) ^2
Interest for third year=P(1+r/100) ^2×r/100
ATQ
Pr/100:P(1+r/100) ^2×r/100=11:37
1:(1+r/100^2=11:37
37=11(1+r/100) ^2
(1+r/100)^2=37/11
1+r/100=1.83
r/100=1.83–1=.83
r=83
Rate of interest is 83%
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