Hi,

Every individual have a different type of intelligence. It might be possible that your that friend which got higher marks has high recalling and understanding power.

The other reason behind high marks may be that he have attended the classess for that before so even thogh he had not studied he might have some part of it in his memory so that before exam when he studied it is grasped easily in his mind.

And the last and important thing is he might have studied the important topics, most frequently asked questions which have given Hime a good score.

So looking at the paper pattern and previous years paper is also important. It helps you to increase your marks.

So these are my assumptions about your friend due to which he might got the 60 marks. You should also talk with your friend to know his preparation strategy. If it suits you, you can use that.

Hope it helps.

Thank you...