A) If Ashok works hard then gets good grade
B) If Ashok does not work hard then he gets good grade
C) If Ashok does not work hard then he does not get good grade
D) Ashok works hard if and only if he gets grade
Correct Answer: B
Solution :
[b] \[\tilde{\ }p:\] Ashok does not work hard Use \['\to '\] symbol for then \[(\tilde{\ }p\to q)\] mean = If Ashok does not work hard then he gets good grade.
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