how to identify that we shd find peemutation or combination of a given question ...clear explain pls.
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One very simple trick is to look for what set of things is given on the question
Step-by-step explanation:
For example of it asks for number of handshakes between people then it's a combination question as a handshake between person A and B and is same as a handshake between B and A...
One example for permutations is words in a dictionary... As we can see AND is different from DAN... The letters are same still order matters...
In conclusion... Permutation - order of things matter
In Combination - it doesn't matter..
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i don't now this answer
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