A) 15
B) 40
C) 50
D) 70
Correct Answer: D
Solution :
CP of 50 pens \[=50\times 50=Rs.\,2500\] For profit of 10% \[SP=\frac{2500\times 110}{100}=Rs.\,2750\] SP of 40 pens at a loss of 5% \[=\frac{40\times 50\times 95}{100}=Rs.\,1900\] SP of 40 remaining 10 pens \[=2750-1900=Rs.\,850\] \[\therefore \] Gain percentage \[=\frac{850-500}{500}\times 100=70\]You need to login to perform this action.
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