The sum of all 4 digit number containing the digits 2,4,6,8 without repetition is?
Answers
Answer:
What is the sum of all 4 digit numbers that can be formed using the digits 2, 4, 6, 8 without repetition ?
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__ __ __ __ is a 4 digit number where every digit has to be 2,4,6 or 8
Or, every digit has to be (2+4+6+8)/4=5 on an average
Now, number of 4 digit numbers from 2,4,6 or 8 without repetition is 24.
So, sum=5555*24=133320
Proof:
2468+2486+2864+2846+2684+2648+4268+4286+4862+4826+4682+4628+6248+6284+6428+6482+6842+6824+8246+8264+8462+8426+8624+8642=133320
Answer:
Answer is 133,320
Step-by-step explanation:
hope it helps
You can use the formula given above to solve this problem.
The first page is to prove how to do it
