Question

К двузначному числу приписали цифру пять сначала слева, а потом справа и получили два трехзначных числа, сумма которых равна 912. Надо найти двузначное число...

Answer 1

537

375

537+375=912

Выходит число 37

Answer 2

Problem Analysis

We are given a two-digit number to which the digit 5 is added first on the left and then on the right. This results in two three-digit numbers whose sum is 912. We need to find the original two-digit number.

Solution

Let's assume the original two-digit number is represented by AB, where A is the tens digit and B is the ones digit.

According to the problem, when the digit 5 is added to the left and right of AB, we get two three-digit numbers. The left three-digit number is represented by 5AB, and the right three-digit number is represented by AB5.

The sum of these two