Let the require digit be
Then according to question
.….. (1)
And, .…..(2)
Now putting the value of y in equation (2) from (1)
So, either
Or
So, the digit can never be negative.
When then
Therefore, number
Thus, the required number be
A two-digit number is 4 times the sum of its digits and twice the product of its digits. Find the number.
A two digit number is 4 times the sum of its digit and twice the product of the digit .find the number
If two digit number is four times the sum of its digits and twice the product of digits .find the number