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Permutation-and-Combination

In how many ways 2 students can be chosen from class of 20 students?


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This Chapter Permutation-and-Combination consists of the following topics

A two member committee comprising of one male and one female member is to be constitute out of five males and three females. Amongst the females. Ms. A refuses to be a member of the committee in which Mr. B is taken as the member. In how many different ways can the committee be constituted ?

In how many ways 2 students can be chosen from class of 20 students?

Three gentlemen and three ladies are candidates for two vacancies. A voter has to vote for two candidates. In how many ways can one cast his vote?

In how many ways 2 students can be chosen from the class of 20 students?

Permutation and Combination

Arithmetic-Aptitude