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5 digit number

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A 5 digit number 2020-04-04
Rajesgy pose la question :
Guess the 5 digit number
Hint:
Number is divisible by 2
Average of all numbers is 5
Last 2 digit is divisible by 7 and the number is less than 50000
Only one odd digit

Penny Nom lui répond.
Even 5 digit palindromes 2019-10-24
daniel pose la question :
How many palindromes of 5 digits are even?
Penny Nom lui répond.
Some 5 number sets 2018-03-02
Sarah pose la question :
Hello! My question is:
If I have 5 columns of numbers, and I want to create all possible combinations (or is it permutations?) How can I do that? For example all numbers in each column may not appear in any other column. so:
column 1: 1,2,3,4,5
column 2: 6,7,8,9,10
column 3: 11,12,13,14,15
column 4: 16,17,18,19,20
column 5: 21,22,23,24,25

how may I determine all the possible ways I can get sets of 5 out if this? Thanks!

Penny Nom lui répond.
A five digit number 2016-10-12
Massa pose la question :
Explain why any four digit number is less than any five digit number?
Penny Nom lui répond.
5 digit numbers using the digits 5 and 2 2011-04-27
sissy pose la question :
I need a list of all possible 5 digit combinations using 5 and 2 numbers can repeat
Penny Nom lui répond.
What is the original number? 2009-04-16
Yueh pose la question :
A five digit number is written on a blackboard. Ron erases one of the digits and adds a newly constructed number to the original one. The result is 41751. What is the original number?
Claude Tardif lui répond.
The sum of some 5 digit numbers 2008-04-05
Tom pose la question :
There are 120 five-digit numbers that use all the digits 1 through 5 exactly once. What is the sum of these 120 numbers?
Penny Nom lui répond.
 
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