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Sony’s class teacher informed her to select 6 out of 10 subjects, and also she told her that two of the subjects are compulsory to choose and the rest of them are of your interest. In how many ways Sony can choose her subjects?

Sony’s class teacher informed her to select 6 out of 10 subjects, and also she told her that two of the subjects are compulsory to choose and the rest of them are of your interest. In how many ways Sony can choose her subjects? Correct Answer 70

Given that, there are 10 subjects in which Sony should select 6. It is given that 2 of them are compulsorily to choose. If two subjects are compulsory to choose then there will be 8 subjects left. In the 8 subjects Sony should choose the other 4 subjects. Sony can select the subjects in 8C4 = 70 ways.

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