On a certain sum, the simple interest at the end of 61

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On a certain sum, the simple interest at the end of 6 1 years becomes
4

3 of the sum. The rate of interest is
8

According to question ,

Simple Interest	=	3
Principal	=	8

∴ Rate =	S.I × 100
	Principal × Time

Rate =	3	×	100
	8		(25 / 4)

Rate =	3	×	400
	8		25

Rate = 6% per annum
Second method to solve this question :

Here, n =	3	, T =	25	Years.
	8		4

R =	n × 100
	T

R =	3	×	100
	8		( 25 / 4 )

R = 6%

On a certain sum, the simple interest at the end of 6	1	years becomes
	4

	3	of the sum. The rate of interest is
	8