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A student gets 4 marks for a correct ans...

A student gets 4 marks for a correct answer and 1 mark is deducted for a wrong answer. If she has done 80 questions at all and she has gotten only 240 marks. The correct answers she has attempted is :

A

40

B

60

C

64

D

can't be determined

Text Solution

Verified by Experts

The correct Answer is:
C
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