Answers

2014-11-18T11:49:41+05:30
Let the sum be x

case (i) 
Principle = x, Rate = 7%, time = 3.5 yrs
Interest =  \frac{PTR}{100}
 \frac{x (7)(3.5)}{100}
 \frac{24.5x}{100}

case (ii) 
Principle = x, Rate = 5%, time = 4 yrs
Interest =  \frac{PTR}{100}
 \frac{x (5)(4)}{100}
 \frac{20x}{100}

given that, the simple interest for case (i) is Rs 225 more than the simple interest for case (ii)

\frac{24.5x}{100} - \frac{20x}{100} = 225

 \frac{4.5x}{100}  = 225

x =  \frac{22500}{4.5}

x = 5000

The sum = Rs 5000


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