Asked by Anonymous
the digit at the tens place of a two digit number is four times that in the units place if the digits are reversed he new number will be 54 less than the orginal number. find the orginal number
Answers
Answered by
Reiny
unit digit --- x
tens digit -- 4x
the number is 10(4x) + x
or 41x
the number reversed is 10x + 4x
or 14x
41x - 14x = 54
27x = 54
x = 2
the original number is 82
check:
82-28 = 54 , all is good.
tens digit -- 4x
the number is 10(4x) + x
or 41x
the number reversed is 10x + 4x
or 14x
41x - 14x = 54
27x = 54
x = 2
the original number is 82
check:
82-28 = 54 , all is good.
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