Soham is facing the park. He made a anti-clockwise turn followed by clockwise turn.
What is he facing now ?
School. It is because 3/4 means 3 parts of 4. If he turns anticlockwise 3/4 then he will reach the hospital. After that 1 1/2 turn. If we take it one by one first 1 whole turn will come. He will reach the hospital again. And 1/2 turn means 1 of 2 parts. So he will take a half turn clockwise,(as mentioned in the question) and reach the school.