1.

The sum of the digits of a two number is 12 . If the digits are interchangedthe number is increased by 18.Find the number​

Answer»

Answer:

57

Step-by-step explanation:

LET the digit at the tens PLACE be x and the digit at the UNIT place be y. Required Number = (10x+y). Number obtained on REVERSING the DIGITS = (10y+x). Hence, the required number is 57.



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