Question 1110917
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<U>Answer</U>.  24.
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<U>Solution</U>


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If the decimal form of number is  "ab",  them


10a + b = 6b,   according to the condition.


It implies  10a  = 5b,   or   b = 2a.


The sum of the digit  is 6:

a + b = 6 = a + 2a = 3a  ====>  a = 2;  b = 4.


The number is  "ab" = 24.
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Solved.