A) 35
B) 40
C) 42
D) 46
Correct Answer: B
Solution :
Let the number of correct answer be \[x.\] Then, the number of wrong answer be \[75-x.\] According to the given condition, \[x\times 4-(75-x)\times 1=125\] \[\Rightarrow \] \[4x-75+x=125\] \[\Rightarrow \] \[5x=200\] \[\Rightarrow \] \[x=40\]You need to login to perform this action.
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