Question

В трёхзначном числе зачеркнули цифру в разряде сотен, затем полученное двухзначное число умножили на 7 и вновь получили исходное трёхзначное число.Какое это число?

Answer 1

Если в числе 350 зачеркнуть цифру в разряде сотен (тройку), затем полученное двузначное  число (пятьдесят) умножить на 7, мы вновь получим 350.   Ответ: это число 350.

Answer 2

Solution:

To solve this problem, we need to find a three-digit number where removing the hundreds digit results in a two-digit number. Then, we'll multiply the two-digit number by 7 and check if the result is the original three-digit number.

Let's denote the three-digit number as abc, where a is the hundreds digit, b is the tens digit, and c is the ones digit.

1. We know that abc - a00 = bc. 2. Then, bc * 7 = abc.

Let's solve for the three-digit number using these conditions.

Calculation:

We can start by finding the possible values for a, b, and c using the given conditions.

1. From the given conditions, we have abc - a00 = bc. - From Source we have a clue: "246 7, , ( , , ,." - This doesn't directly provide the answer, so we'll continue with the next clue.

2. Then, bc * 7 = abc. - From Source we have a clue: "707 . ? 707 238 = 469 . 367 ? 600. 576. 122. 157 ? 6 0 0. 3 6 7. 2 3 3. . 5 7 6. 2 7 9. 2 9 7." - This doesn't directly provide the answer, so we'll continue with the next clue.

3. From Source we have a clue: "70. . 487. ; 7, 11, 13." - This doesn't directly provide the answer, so we'll continue with the next clue.

4. From Source we have a clue: "18 -2022 : -1, -1 -1, +3. 4. ( , 1, 2 0), - . , , . , ( 306). ) , . 307 , 0 . () , ., 1- 306 . 2- 1 , 3- 4- 0 . , 3- 4- 4. 306; 1; 0; 0" - This doesn't directly provide the answer, so we'll continue with the next clue.

Conclusion:

Unfortunately, the search results did not provide the specific three-digit number that satisfies the given conditions. It seems that the information available is not directly related to the specific mathematical problem provided.

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