Mixed Problems
Mixed Problems On Permutation And Combinations
Let us consider some practical problem where both permutations and combination are used.
Illustration: Out of 7 consonants and 4 vowels, how many words of 3 consonants and 2 vowels can be formed ?
Solution Three consonants out of 7 and 2 vowels out of 4 can be chosen in
ways.
Thus, there are groups each containing 3 consonants and 2 vowels.
Since each group contains 5 letters, which can be arranged among themselves in 5! ways.
Hence, the required number of words =
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Archit Segal
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Ayan Ghosh
8thAbhyas institute is one of the best coaching institute in the vicinity of Ambala Cantt area. The teachers of the institute are well experienced and very helpful in solving the problems of the students.The good thing of the institute is that it is providing extra classes for the students who are w...
Aman Kumar Shrivastava
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Yogansh Nyasi
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Aman Kumar Shrivastava
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Cheshta
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Shivam Rana
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Yatharthi Sharma
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Upmanyu Sharma
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Om Umang
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Manish Kumar
10thAbhyas academy is great place to learn. I have learnt a lot here they have finished my fear of not answering.It has created a habit of self studying in me.The teachers here are very supportive and helpful. Earlier my maths and science was good but now it has been much better than before.
