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Thepotemich [5.8K]
3 years ago
11

A two digit number is such that, the sum of its digit is 13.When the digits are interchange, the original number is increased by

9. Find the original number.​
Mathematics
1 answer:
wlad13 [49]3 years ago
4 0

Answer:

Concept: Mathematical Representation

  1. You have a two digit # __
  2. The sum of the two digit # = 13
  3. The original # increased by 9
  4. Hence we must find values that sum to 13. *Note they must be independently standing.
  5. 8+5, 9+6, 7+6 , 6+7 , and etc
  6. The value must also increase by 9
  7. So logically it would be any result that when switched that value would be 76-67= 9.
  8. So the value must be 67
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