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A student obtained equal marks in History and Sociology. The ratioof marks is Sociology and Geography is 2:3 and the ratio fo the marks in History and Philosophy is 1:2. If he has scored an aggregate of 55% marks. The maximum marks in each subject is same. In how many subjects did he score equal to or greager than 60% marks?

A student obtained equal marks in History and Sociology. The ratio of marks in Sociology and Geography is 2: 3 and the ratio of marks in History and Philosophy is 1 : 2. If he has scored an aggregate of 55% marks. The maximum marks in each subject is same. In how many subjects did he score equal to or greater than 60% marks?