Question

What is the sum of all 4 digit numbers formed using the digits 2, 3,4 and 5 without repetition?

Answer 1

93324 is the right answer of this question

Answer 2

Answer:

the answer is 93324

Step-by-step explanation:

here is the formula for sum of the numbers formed by taking all the given n digits = (sum of all digits) × (n-1)! × (11....n times)

=(2+3+4+5) × (4-1)! × (1111)                                  ⇒n=4 that is why 1111

=(20) × 3! × 1111

=20 × 6 × 1111

= 93324

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