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What is the value of ¹⁴P₁?

Answer and explanation

Correct answer: 14

The governing permutation formula is ⁿPᵣ = n!/(n−r)!. For r = 1, this becomes ⁿP₁ = n!/(n−1)! = n, because all factors from 1 to n−1 cancel. Substituting n = 14 gives ¹⁴P₁ = 14! / 13! = 14. Equivalently, arranging one object selected from 14 available objects simply means choosing which one object occupies the single position, so there are 14 possibilities. Therefore, option A is correct. The value 1 would ignore the 14 choices, 196 incorrectly squares 14, and 28 is twice 14 rather than the value of the permutation. No additional multiplication or division is needed when only one position is filled.

Related tags

PermutationsPermutation FormulaFactorial NotationClass 11Permutations And CombinationsMathematicsClass 11 Mcq

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