Is there any sequence by which we can know where to use permutation and combination.

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Solution

When order is important, you have to use permutation
When order is not important in arrangement, then use combination
Use multiplication when 'and' is given.
Use addition when 'or' is given.

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Is there any sequence by which we can know where to use permutation and combination.

When order is important, you have to use permutation When order is not important in arrangement, then use combination Use multiplication when 'and' is given. Use addition when 'or' is given.

When order is important, you have to use permutation
When order is not important in arrangement, then use combination
Use multiplication when 'and' is given.
Use addition when 'or' is given.