Study the information given in each of these questions and then answer the question.
Out of the total 550 students, how many students did not prefer Maths or Economics?
Break-up of students having preference for each subject.
12% like Maths and 16% like Economics. So, 28% students like Maths or Economics. The rest of them (72%) don't.
So, the answer is 72% * 550 = 396
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