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Permutations And Combinations

Class 11 Mathematics के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

MathematicsIf \(^{n}C_r=\frac{n-r+1}{r},^{n}C_{r-1}\) and \(n=10\), \(r=4\), what is the multiplier?Class 11Permutations and CombinationsDerivations of formulas and their connectionsMedium MathematicsIf ⁿPᵣ = n!/(n−r)!, how will ⁿPᵣ₊₁ be written in terms of ⁿPᵣ?Class 11Permutations and CombinationsDerivations of formulas and their connectionsMedium MathematicsIf directed arrows are to be made from (5) distinct points which formula connection is correct?Class 11Permutations and CombinationsDerivations of formulas and their connectionsEasy MathematicsIf line segments are to be formed from (5) distinct points which formula connection is correct?Class 11Permutations and CombinationsDerivations of formulas and their connectionsEasy MathematicsWhy does (n!) appear in the numerator of the formula for (^{n}C_r)?Class 11Permutations and CombinationsDerivations of formulas and their connectionsEasy MathematicsWhich pair is formed when connecting (^{n}C_r) with (^{n}C_{n-r})?Class 11Permutations and CombinationsDerivations of formulas and their connectionsEasy MathematicsIf (r=n) in (^{n}P_r) what is the practical meaning?Class 11Permutations and CombinationsDerivations of formulas and their connectionsEasy MathematicsIf (r=0) in (^{n}C_r) what is the practical meaning of the selection?Class 11Permutations and CombinationsDerivations of formulas and their connectionsEasy MathematicsWhich of the following situations is most appropriately represented using permutations?Class 11Permutations and CombinationsDerivations of formulas and their connectionsEasy MathematicsIf (n=10) and (r=4) what is the last factor (n-r+1) of (^{n}P_r)?Class 11Permutations and CombinationsDerivations of formulas and their connectionsEasy MathematicsWhat is the meaning of (n-r) in (^{n}C_r)?Class 11Permutations and CombinationsDerivations of formulas and their connectionsEasy MathematicsWhich word is the best signal to treat (^{n}P_r) as ordered arrangement?Class 11Permutations and CombinationsDerivations of formulas and their connectionsEasy MathematicsWhich word is the best signal to treat ⁿCᵣ as an unordered selection?Class 11Permutations and CombinationsCombinationsEasy MathematicsIf one pen is to be chosen from (5) red pens or (6) blue pens which principle is used?Class 11Permutations and CombinationsDerivations of formulas and their connectionsEasy MathematicsIf an outfit is made from (3) shirts and (4) pants which principle shows the formula connection?Class 11Permutations and CombinationsDerivations of formulas and their connectionsEasy MathematicsWhen is the division principle used in the derivation of (^{n}C_r)?Class 11Permutations and CombinationsDerivations of formulas and their connectionsEasy MathematicsWhy is (^{n}C_r) smaller than (^{n}P_r) when (r>1)?Class 11Permutations and CombinationsDerivations of formulas and their connectionsEasy MathematicsWhen are (^{n}P_r) and (^{n}C_r) equal?Class 11Permutations and CombinationsDerivations of formulas and their connectionsEasy MathematicsIf clockwise and anticlockwise arrangements are considered same the necklace count of (n) distinct beads is connected with which form?Class 11Permutations and CombinationsDerivations of formulas and their connectionsEasy MathematicsWhy does ((6-1)!) appear in seating (6) distinct people around a round table?Class 11Permutations and CombinationsDerivations of formulas and their connectionsEasy