Question:The simple interest on a sum of money at `5%` is Rs.`48` for `4` years. The simple interest on the same sum for `5` years at `4%`will be : 

A `Rs. 400` 
B `Rs. 48` 
C `Rs. 50` 
D `Rs. 60` 

+ Answer
B 

+ Explanation
Principal 

`= Rs. ((100 xx 48)/(5 xx 4))`

`= Rs. 240`

`S.I = Rs.((240 xx 5 xx 4)/(100))`

`= Rs. 48`.

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Irin Moni

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