how to make a guess in jee mains online paper 2016?also how we can eleminate options? is there any scope of cheeting in jee mains online paper

Dear student,

There is no scope of cheating as JEE main online/offline.
If you guess the probability that your answer is correct is ¼ which is 25% chances are there for getting question correct
Ya surely you can eliminated incorrect options by some tricks like dimentional analysis, checking options, taking special cases/ checking for end values, contradiction,etc

Thanks