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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A number lock consists of 3 rings each marked with 10 different numbers. In how many cases the lock cannot be opened ?

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If all of the telephone extensions in a certain company must be even numbers, and if each of the extensions uses all four of the digits 1,…

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0 Permutations & Combinations questions available for your Free Practice

How many six digit numbers can be formed using the digits 0, 2, 4, 6, 8, 5, 7 and 3 under the following conditions

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