The sum of the digits of a two number is 8. The number exceeds 17 times the unit’s digit by 2. How do you find the number?
2 Answers
53
Explanation:
Number with two digits can be expressed as :
We know that the sum of the two digits is 8 so:
The number is 2 more than 17 times the unit digit. We know that the number is expressed as
Substituting:
Explanation:
Let the unit digit be
So the number is
So we get
or
or
Dividing both the sides by 2 we get
Adding up we get
or
or
or
or
By putting the value
we get
or
or
Hence the number is