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JEE Mains · Maths · STD 11 - 6. permutation and combination

अंकों (digits) \(0,1,2,5,7\) तथा \(9\) के प्रयोग से \(6\) अंकों वाली ऐसी संख्याओं, जो \(11\) से भाज्य हों तथा जिनमें कोई भी अंक दोबारा न आए, की संख्या है 

  1. A \(36\)
  2. B \(60\)
  3. C \(72\)
  4. D \(48\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(60\)

Step-by-step Solution

Detailed explanation

Let the six digit number be \(abcdef\) for this number to be divisible by \(11\) \(|(a+c+e)-(b+d+f)|\) must be multiple of \(11\) \(\therefore \) possibility is \(a+c+c=b+d+f=12\) Case \(I\,\,\{a,c,e\}=\{7,5,0\}\) and \(\{b,d,f\}=\{9,2,1\}\) So, number of numbers…
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