AP EAMCET · Maths · Permutation Combination
The sum of all 4-digit numbers that can be formed using the digits 2, 3, 4, 5, 6 without repetition, is
- A 533820
- B 532280
- C 533280
- D 532380
Answer & Solution
Correct Answer
(C) 533280
Step-by-step Solution
Detailed explanation
Given digits are 2, 3, 4, 5, 6 Sum of all 4-digit numbers formed by the using 2, 3, 4, 5, 6 without repetition \(\begin{aligned} & =41(2+3+4+5+6)\left(10^3+10^2+10^1+10^0\right) \\ & =24(20)(1000+100+10+1) \\ & =(480)(1111)=533280 \end{aligned}\)
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