If a two digit positive number is multiplied by its unit digit, then the product is 189 and if the tens' digit is twice of the unit digit, then calcutate the unit digit.

If a two digit positive number is multiplied by its unit digit, then the product is 189 and if the tens digit is twice of the unit digit, then find the unit digit.

The tens digit of a two digit number is less by 3 than the unit digit If the product of the two digits is subtracted from the number,the result is 15. Let us write the unit digit of the number by calculation.

The tens' digit of a two digit number is less by 3 than the unit digit. If the product of the two digits are subracted from the number, the result is 15. Find the unit digit of the number.

A two digit number is 4 times the sum of its digits and the unit digit is 3 more than the tens digit . the number is :

In the product 3759xx9573 , the sum of ten's digit and unit's digit is

The tenth digit of two digit number is less by 3 than the unit digit. If the product of the two digits are subtracted from the number the result is 15. Find the unit digit of a number.