SATHEE: Permutations And Combinations Question 266

Permutations And Combinations Question 266

Question: If $ ^{12}P _{r}=1320 $ , then r is equal to [Pb. CET 2004]

Options:

A) 5

B) 4

C) 3

D) 2

Show Answer

Answer:

Correct Answer: C

Solution:

Since $ ^{12}P_3=1320;\therefore r=3 $ .

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Permutations And Combinations Question 266

Question: If $ ^{12}P _{r}=1320 $ , then r is equal to [Pb. CET 2004]

Options:

Answer:

Solution:

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