Question

1)Сумма двух чисел 495.Одно из чисел оканчивается нулем.если этот нуль зачеркнуть,то получитс второе число. Найди эти числа. 2)У Пети 2 коробки. В1ой он спрятал подарок для папы.На 1ой она написал -подарок здесь. на 2ой -нет подаркаПапе он объяснил,что в 1ой коробке лежит подарок,а надписи либо истинные.либо обе ложные.В какой коробке подарок?

Answer 1

1)450  и 45

2)ну может там где написано "подарок здесь"...но я точно не знаю.. 

Answer 2

Task 1: Finding Two Numbers

To find the two numbers, let's denote the numbers as A and B. We know that the sum of the two numbers is 495, and one of the numbers ends with a zero. When we remove the zero from this number, we get the other number. Let's solve for A and B.

Let's denote the number that ends with zero as 10x (where x is a single digit) and the other number as y.

We have the following equations: 1. A + B = 495 2. A = 10x 3. B = y 4. B = A - 10x

Substituting the values of A and B into the first equation, we get: 10x + y = 495 y = 495 - 10x

Now, we need to find a pair of numbers where one ends with zero, and when the zero is removed, it forms the other number.

Let's calculate the possible pairs of numbers.

Calculation:

Let's calculate the possible pairs of numbers where one ends with zero, and when the zero is removed, it forms the other number.

1. When x = 1, y = 495 - 10*1 = 485 - The pair of numbers is 10 and 485.

2. When x = 2, y = 495 - 10*2 = 475 - The pair of numbers is 20 and 475.

3. When x = 3, y = 495 - 10*3 = 465 - The pair of numbers is 30 and 465.

4. When x = 4, y = 495 - 10*4 = 455 - The pair of numbers is 40 and 455.

5. When x = 5, y = 495 - 10*5 = 445 - The pair of numbers is 50 and 445.

6. When x = 6, y = 495 - 10*6 = 435 - The pair of numbers is 60 and 435.

7. When x = 7, y = 495 - 10*7 = 425 - The pair of numbers is 70 and 425.

8. When x = 8, y = 495 - 10*8 = 415 - The pair of numbers is 80 and 415.

9. When x = 9, y = 495 - 10*9 = 405 - The pair of numbers is 90 and 405.

So, the two numbers are 405 and 90.

Task 2: Petya's Gift Boxes

Petya has two boxes, one of which contains a gift for his father. The first box is labeled "The gift is here," and the second box is labeled "There is no gift here." Petya tells his father that the label on the first box is either true or both labels are false. We need to determine in which box the gift is located.

Solution:

If the label on the first box is true, then the gift is in the first box. If the label on the first box is false, then the gift is in the second box. Since Petya said that the label on the first box is either true or both labels are false, it means the gift is in the first box.

I hope this helps! If you have further questions, feel free to ask.