[" A certain aumber between "10" and "100" is "8" times the sum of is digis,and if "45" be subtracted from it,the digite "],[" will be revened.Find the number."]

From the pair of linear equations in the following problems and find their solutions (if they exist) by elimination method : A certain number of two digits is three times the sum of its digits and if 45 be added to i,t the digits will be reversed. Find the number.

A number consisting of two digits is seven times the sum of its digits. When 27 is subtracted from the number, the digits are reversed. Find the number.

A two-digit number is 4 more than 6 times the sum of its digits. If 18 is subtracted from the number, the digits are reversed. Find the number.

A two-digit number is 4 times the sum of its digits. If 18 is added to the number, the digits are reversed. Find the number.

A two-digit number is 4 more than 6 xx the sum of its digits.If 18 is subtracted from the number,the digits are reversed.Find the number.

Word Problem of Numbers A number between 10 and 100 is equal to eight times the sum of its digits. If 45 is substracted from the number then the position of the digits interchange their place. Find the sum of the digits.

If 4 be added with four times of the digit of the unit place of a certain number consisting of two digits, the result will be two times of the sum of the digits. But if 18 be subtracted from the number, the digit will be interchanged. Find the number.

A certain number of two digits is three times the sum of its digits. If 45 is added to the number, the digits will be reversed. What is the sum of the squares of the two digits of the number?