A) 120%
B) 60%
C) 100%
D) 200%
Correct Answer: A
Solution :
Let the selling price be Rs. 100. \[\therefore \] Cost price \[=\frac{SP\times 100}{(100+10)}=\frac{100\times 100}{110}\] = Rs.\[\frac{1000}{11}\] Now, if selling price is Rs. 200 \[\therefore \] Gain = Rs. \[\left( 200-\frac{1000}{11} \right)\]= Rs. \[\frac{1200}{11}\] Gain per cent\[=\frac{1200/11}{1000/11}\times 100=120%\]You need to login to perform this action.
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