Mathematics - Permutation & Combination Question with Solution | TestHub
MathematicsPermutation & CombinationnPr & nCrEasy2 minQB
MathematicsEasysingle choice
Passage / Comprehension
A is a set containing ‘n’ elements. A subset ‘P’ of ‘A’ is chosen at random. The set A is reconstructed by replacing the elements of ‘P’. A subset Q is again chosen at random. Then the number of ways of selecting P & Q so that
Options:
Answer:
B
Solution:
If contains elements, then the number of ways of selecting is 
Stream:JEESubject:MathematicsTopic:Permutation & CombinationSubtopic:nPr & nCr
⏱ 2mℹ️ Source: QB
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