A) Rs. 250
B) Rs. 400
C) Rs. 425
D) Rs. 450
Correct Answer: B
Solution :
[b] Let CP = Rs. x First SP = 115% of \[x=\frac{23}{20}x\] second CP = 90% of \[x=\frac{9x}{10}\] second SP = 120% of \[\frac{9x}{10}=\frac{120}{100}\times \frac{9x}{10}\] \[=\frac{27x}{25}\] It is given that \[\frac{23x}{20}-\frac{27x}{25}=28\] \[\Rightarrow \] \[\frac{115x-108x}{100}=28\] \[\Rightarrow \] \[x=\frac{28\times 100}{7}=Rs.400\]You need to login to perform this action.
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