A certain sum amounts to rs.7350 in 2 years and to rs.8575 in 3 years. Find the sum and rate percent.
Options:
A . 5400, 20/3%
B . 5400, 18/3%
C . 5500, 20/3%
D . 5500, 18/3%
Answer: Option A
S.I on Rs.7350 for 1 year=Rs.(8575-7350)=Rs.1225 Rate=(100*1225/7350*1)%= 20/3% Let the sum be Rs.x. 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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