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Surface Chemistry

Surface Chemistry

For an examination consisting of three subjects -Maths Physics and Chemistry, 280 students appeared. When the results were declared, 185 students had passed in Maths, 210 had passed in Physics and 222 had passed in Chemistry. All those except 5 students who passed in Maths, passed in Physics. All those except 10 students who passed in Maths, passed in Chemistry. 47 students failed in all the three subjects. 200 students who passed in Physics also passed in Chemistry : How many students passed in Chemistry only ?

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What is chemistry? "

Nuclear chemistry

Marks Obtained by Five Students in Physis and Chemistry Marks obtained by S in chemistry is what percent of the total marks obtained by all the students in Chemistry ?