Grade 12th passMarks and Rank in IIT JEE
If a denotes the number of permutations of (x + 2) things taken all at a time, b the number of
permutations of x things taken 11 at a time and c the number of permutations of (x – 11) things
taken all at a time such that a = 182 bc, then the value of x is
(A) 15 (B) 12 (C) 10 (D) 18
If a denotes the number of permutations of (x + 2) things taken all at a time, b the number of
permutations of x things taken 11 at a time and c the number of permutations of (x – 11) things
taken all at a time such that a = 182 bc, then the value of x is
(A) 15 (B) 12 (C) 10 (D) 18
permutations of x things taken 11 at a time and c the number of permutations of (x – 11) things
taken all at a time such that a = 182 bc, then the value of x is
(A) 15 (B) 12 (C) 10 (D) 18
