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

પુનરાવર્તન સિવાય અંકો \(0, 1, 2, 5, 7\) અને  \(9\) નો ઉપયોગ કરી \(11\) વડે વિભાજ્ય છ અંકની કેટલી સંખ્યા બનાવી શકાય.

  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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