UNIT DIGIT

Property 6 The units digit of the square of a natural number is the units digit of the square of the digit at units place of the given natural number.

In a 3 -digit number,the tens digit is thrice the units digit and the hundreds digit times the units digit.Also,the sum of its digits is 16. Find the number

A three digit number is such that this number itself is divisible by the sum of its digits. The sum of hundreds and unit digit is 6 while the sum of the tens and unit digit is 5. What is the ratio of unit and tens digit :

The hundred digit of a three digit number is 7 more than the unit digit. The digits of the number are reversed and the resulting number is subtracted from the original three digit number. The unit digit of the final number, so obtained is

The sum of the digits of a three-digit number is 16. If the tens digit of the number is 3 times the units digit and the units digit is one-fourth of the hundredth digit, then what is the number?