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Yukti Vault

Algebra

Permutation and Combination: JEE Main & Advanced PYQs

303 previous year questions on Permutation and Combination from JEE Main and JEE Advanced papers, each with its exam and year, an answer and a solution.

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Questions 301-303 of 303

  1. The number of natural numbers, between $212$ and $999$, such that the sum of their digits is $15$, is $\_\_\_\_\_\_\_\_$ .
  2. The value of ${}^{50}C_4+\sum\limits_{r=1}^{6}{}^{56-r}C_3$ is
  3. The number of $3$-digit numbers, that are divisible by $2$ and $3$, but not divisible by $4$ and $9$, is ______.

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