Asked by Singh

A number has two digits whose sum is 9. If 27 is added to the number,its digits get interchanged. Find the number
Answered by bobpursley
the number is AB

A+B=9
10A+B+27=10B+A

A+B=9
9A-9B=-27

can you take if from here?
Answered by Aditya
No
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