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What is the value of \(\frac{16!}{14!\times 8}\)?

Answer and explanation

Correct answer: 30

Since \(16!=16\times15\times14!\), \(\frac{16!}{14!\times8}=\frac{16\times15\times14!}{14!\times8}=\frac{16\times15}{8}=2\times15=30\). Hence, the correct answer is 30. Option 32 is a close distractor, but it does not follow from the correct simplification. Exam tip: In a factorial fraction, expand the larger factorial only up to the smaller factorial and cancel common factors first.

Related tags

Factorial NotationFactorial SimplificationPermutations And CombinationsClass 11 MathematicsMathematicsClass 11 Mcq

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