in a group of 100 students, 80 students choose blue colour while 50 students choose pink colour. every student has to choose at least one of the colours. how many students choose both the colours as their favourite colour?
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How many students are there in the class? ... The 8 students who play both hockey and football go in the intersection ... To find out the number of students in the class we add up all the sections: 11 + 8 + 5 + 7 = ... In a class there are 30 students. ... We know the total in the Maths circle needs to be 21 but we can't put this in ...
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