A) Rs. 60
B) Rs. 80
C) Rs. 100
D) Rs. 120
Correct Answer: B
Solution :
C.I. \[=Rs.\left[ 8000\times {{\left( 1+\frac{10}{100} \right)}^{2}}-8000 \right]\] \[=Rs.1680\] S.I. \[=Rs.\left( \frac{8000\times 10\times 2}{100} \right)=Rs.1600\] Gain \[=(C.I.)-(S.I.)\] \[=Rs.\,(1680-1600)=Rs.80\]
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