A) 52%
B) 50%
C) 33%
D) 25%
Correct Answer: D
Solution :
Let total marks \[=x\] Passing marks \[=\frac{20}{100}x+30=\frac{32}{100}x-42\] \[\Rightarrow \] \[x=\frac{72\times 100}{12}=600\] \[\therefore \] Percentage of passing marks \[=\left( \frac{\frac{20}{100}\times 600+30}{600}\times 100 \right)%\] \[=\frac{150}{600}\times 100%=25%\]You need to login to perform this action.
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