Permutations & Combinations | Learning Zone

A question paper consists of 15 questions with 5 options in each question. In how many ways can an individual can attempt entire paper ?

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The diagram below shows the various paths along which a mouse can travel from point X, where it is released, to point Y. where it is rewarded with…

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In how many ways can the letters of the word ABACUS be rearranged such that the vowels always appear together ?

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A ship consists of 500 rooms — 200 AC rooms & 300 non AC rooms. In how many ways 500 families can be accomidated (one family in…

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