What are the marks obtained by D in all the subjects together?
Marks obtained by D in :
Subject P ⟶ 75×70100=52.5
Subject Q ⟶ 85×80100=68
Subject R ⟶ 82×120100=98.4
Subject S ⟶88×125100=110
Subject T ⟶ 72×75100=54
Subject U ⟶ 78×150100=117
∴ Total marks = 52.5 + 68 + 98.4 + 110 + 54 + 117 = 499.9