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Permutations and Combinations · 2021 · 26 Aug · Shift 1

2 Mathematics questions from this JEE Main paper

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JEE Main
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2021 · 26 Aug · Shift 1
Mathematics
Permutations and Combinations

Permutations and Combinations · 2021 · 26 Aug · Shift 1

2 Mathematics questions from this JEE Main paper

Q36.If $^{1} P_{1} + 2.^{2} P_{2} + 3.^{3} P_{3} + .... + 15.^{15} P_{15} =^{q} P_{r} - s, 0 \leq s \leq 1$ , then $^{q + s} C_{r - s}$ is equal to .
Mathematics · Permutations and Combinations · Numerical
Q41.The number of three-digit even numbers, formed by the digits 0, 1, 3, 4, 6, 7 if the repetition of digits is not allowed, is .
Mathematics · Permutations and Combinations · Numerical