Question

Допоможуть розв'язати задачу:вік діда хоттабича записується числом з різними цифрами. Відомо, що:а) якщо першу й останню цифру закреслити, то вийде найбільше з двоцифрових чисел, сума цифр якого дорівнює 13; б) першу цифрами більша від останньої в 4 рази. Скільки років хоттабичк

Answer 1

8942 лет помоему так если я правильно поняла

Answer 2

To solve this problem, let's break it down into smaller steps:

1. Let's assume the age of Hottabych (дід Хоттабича) is a two-digit number, with the first digit representing the tens place and the second digit representing the ones place.

2. According to the first condition, if we cross out the first and last digits of the age, the resulting number should be the largest two-digit number whose digits add up to 13. Let's find this number.

The two-digit numbers whose digits add up to 13 are 49, 58, 67, 76, and 85. However, we need to find the largest among them. The largest two-digit number is 85, so we can conclude that the first and last digits of the age are 8 and 5, respectively.

3. According to the second condition, the first digit is four times greater than the last digit. Since the first digit is 8 and it is four times greater than the last digit, we can calculate the last digit by dividing 8 by 4, which gives us 2. Therefore, the last digit of the age is 2.

4. Now we know that the first digit is 8 and the last digit is 2. Therefore, the age of Hottabych is 82 years old.

So, the answer to the problem is that Hottabych is 82 years old.

Please let me know if there's anything else I can help you with!