Two-digit number

The digit sum of thinking two-digit natural numbers is 11. When it exchanges a sequence of digits, given a number that is 27 less than the thinking number, find out which number I think.

Final Answer:

x =  74

Step-by-step explanation:

a+b = 11 10 b+a = (10 a+b)  27  10 (11a)+a=(10 a+(11a))27  18a=126  a=18126=7  a=7  b=11a=117=4  x=10 a+b=10 7+4=74



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