A three-digit number in which the digit in the units place is the smallest of the three digits is such that the sum of the squares of the digits is 149. If each of the digits is replaced by its predecessor, the new number formed has two digits common with the original number. The digit in the units place of the original number is:

In a three digit number, the digit in the units place is four times the digit in the hundred place. If the digits in the units place and the tens place are interchanged, the new number so formed is 1 more than the original number. If the digit in the hundred place is one third of the digit in the tens place, what is the original number?

In a two-digit number the digit in the unit's place is three times the digit in the tenth's place. The sum of the digits is equal to 8. Then, what is the number?

In a three-digit number, the digit in the unit's place is four times the digit in the hundred's place. If the digit in the unit's place and the ten's place are inter changed, the new number so formed is 18 more than the original number. If the digit in the hundred's place is one-third of the digit in the ten's place, then what is 25% of the original number?

In a two-digit number, the digit at the units place is double the digit in the tens place. The number exceeds the sum of its digits by 18. Find the number.

In a two-digit number, the tens digit is twice the units digit. If the sum of its digits is 9. Find the number

The sum of the digits of a two - digit number is 7. If the digits are reversed, the new number increased by 3, equal 4 times the original number. Find the original number.