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a certain sum amounts to rs.7350 in 2 years and to rs.8575 in 3 years.find the sum and rate ercent.

A. 5400

B. 6400

C. 7400

D. 8767

Correct Answer :

A. 5400


S.I on rs.7350 for 1 year=rs.(8575-7350)=rs.1225.


Rate=(100*1225/7350*1)%=16 2/3%


Let the sum be rs.x.then,


X(1+50/3*100)2=7350


X*7/6*7/6=7350


X=(7350*36/49)=5400.


Sum=rs.5400.

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