Direction: The pie-chart given below shoes the marks obtained by a student in an examination. If the total marks obtained by him in the examination were 540, answer the questions given below based on this pie-chart. |
A) Rs. 250
B) Rs. 300
C) Rs. 180
D) Rs. 200
Correct Answer: D
Solution :
Let the CP of the article be Rs. x SP of the article at 20% loss \[=x\times \frac{80}{100}=Rs.\frac{4x}{5}\] In second case, \[\Rightarrow \] \[\frac{4x}{5}+50=\frac{105x}{100}\] \[\Rightarrow \] \[\frac{4x}{5}+50=\frac{21x}{20}\] \[\Rightarrow \] \[\frac{21x}{20}-\frac{4x}{5}=50\] \[\Rightarrow \] \[\frac{21x-16x}{20}=50\] \[\Rightarrow \] \[\frac{5x}{20}=50\] \[\Rightarrow \] \[x=Rs.\,200\]You need to login to perform this action.
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