Q. 54.8( 42 Votes )

A sum of money tr

Class 8th Karnataka Board - Mathematics Part II 9. Commercial arithmetic

Answer :

Simple interest (SI)

Here,

Let Principal amount (P) = x

Time (T) = 8 years

Amount at end of 8 years = 3x

SI = 3x-x

= 2x

Rate (R) =

= 25%

∴ Rate of interest = 25%.

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