Correct Answer: Option A
Sum = Tk. (50 × 100/2×5) = Tk. 500
Amount = Tk. {500 × (1+5/100)2
= Tk. (500×21/20×21/20)
= Tk. 551.25
So, C.I. = Tk. (551.25 – 500) = Tk. 51.25
C.I. =Tk. {4000 × (1+10/100)2 -4000}
= Tk. (4000 × 11/10 × 11/10 – 4000)
= Tk. 840
So, Sum = Tk. (420 × 100/3×8) = Tk. 1750
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