Find the rate of Interest at which a
sum of money will triple itself in 4years
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Answer:
let the P=X
let the Amount=3X(3 times of the sum of money)
Amount=Principle+Interest
3X-X=SI
2X=SI
SI=PRT/100
2x=X×R×4/100
2x×100/X×4=R
50%=Rate of Interest.
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