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Q: A two digit number has the property that the sum of the number and its digits is 63 what is the original number?

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54

995

It is 58.

If repeated digits are allowed, then the largest 12-digit number is 999,999,999,999 .If repeated digits are not allowed, then the largest 12-digit number is 989,898,989,898 .If the same digit can't be used more than once, then the largest possible number has only10 digits. The number is 9,876,543,210 .

The largest number with no repeated digits is 9,876,543,210 although it is 10 digits long, the largest 3 digit number with no repeated digits is 987

Related questions

54

A) If a number has two digits, then the sum of its digits is less than the value of the original two-digit number.

17

83 A+

19

45

46.

The original number is 58.

39

995

To total 17 the two digits must be 8 and 9! The original number was 98.

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