Hi,

The unit's digit of a two-digit number is twice the ten's digit. 

Twice the original number is 12 more than number in reversed order.

Question states***CENTS makes sense



              3x = 12

               x = 4, ten's digit, the one's digit is 8 



and...

  

Answer by nerdybill(7384)   (Show Source): You can put this solution on YOUR website!
 The unit's digit of a two-digit number is twice the ten's digit. Twice the original number is 12 more than number in reversed order.  What is the original number?

.

Let t = value of ten's digit

then

2t = value of unit's digit

.

from:"Twice the original number is 12 more than number in reversed order." we get

2(10t + 2t) = 10(2t) + t + 12

2(12t) = 20t + t + 12

24t = 21t + 12

3t = 12

t = 4 (value of ten's digit)

.

value of unit's digit:

2t = 2(4) = 8

.

Answer: 48



 

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