A) \[20\]
B) \[17\]
C) \[31\]
D) \[19\]
Correct Answer: B
Solution :
Let the number of correct answers be 'x'. Then the number of incorrect answers is\[24-x\]. The boy gets 3 marks for correct answers and loses 2 marks for wrong answers. \[\therefore \] Total marks \[3x-2\,\,(24-x)=37\] (Given) \[\Rightarrow \] \[3x-48+2x=37\] \[\Rightarrow \] \[5x=37+48\] \[\Rightarrow \] \[x=17\] \[\therefore \] The number of correct sums is 17.You need to login to perform this action.
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