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

\(1,2,2\) અને \(3\) નો ઉપયોગ કરી ને \(4 -\)અંકોની બનતી બધીજ સંખ્યાનો સરવાળો કરો.

  1. A \(26664\)
  2. B \(122664\)
  3. C \(122234\)
  4. D \(22264\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(26664\)

Step-by-step Solution

Detailed explanation

Digits are \(1,2,2,3\) total distinct numbers \(\frac{4 !}{2 !}=12\). total numbers when \(1\) at unit place is \(3.\)3 \(2\) at unit place is \(6\) \(3\) at unit place is \(3 .\) So, sum \(=(3+12+9)\left(10^{3}+10^{2}+10+1\right)\) \(=(1111) \times 24\) \(=26664\)
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