the simple interest on a certain sum for 3.5years at 7%p.a. is rupees 225 more than the simple interest on the same sum for 4 years at 5%p.a. find the sum .
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sum = x
SI=PTR/100
((x+225)*3.5*7)/100 = (x*4*5)/100
on solving,
x=Rs 1225
SI=PTR/100
((x+225)*3.5*7)/100 = (x*4*5)/100
on solving,
x=Rs 1225
sid105:
thanks, but answer is rs.5000.
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