Question

На сканере за первый час отсканировали 2/5 произведения,за второй час1/3произведения,за третий час неизвестно.Какая часть произведения отсканировала на сканере за третий час

Answer 1

2/5+1/3=6/15+5/15=11/15    за 2 часа
1-11/15=4/15   за 3 час

Answer 2

За первый час отсканировали 2/5 произведения, а за второй час - 1/3 произведения.

Чтобы найти, сколько произведения отсканировали за третий час, мы должны вычесть из общего произведения отсканированные части за первый и второй час.

Общая часть произведения, которое нужно отсканировать, может быть представлена как 1/1 или 5/5.

За первый час было отсканировано 2/5 произведения, значит, осталось отсканировать 3/5 произведения. За второй час было отсканировано 1/3 произведения, значит, осталось отсканировать 2/3 произведения.

Теперь мы можем найти, сколько произведения осталось отсканировать за третий час, вычтя от оставшейся части произведения отсканированные части за первый и второй час:

3/5 - 2/3 = (3*3 - 2*5)/(5*3) = 9/15 - 10/15 = -1/15

Таким образом, получается, что за третий час была отсканирована -1/15 произведения. Отрицательное значение означает, что на самом деле было отсканировано меньше, чем нужно.

Answer 3

Calculation of the Scanned Portion in the Third Hour

To determine the portion of the artwork that was scanned in the third hour, we need to consider the information provided for the first two hours and make some assumptions.

In the first hour, 2/5 of the artwork was scanned. In the second hour, 1/3 of the artwork was scanned.

However, the information about the third hour is not provided, so we cannot determine the exact portion of the artwork that was scanned in that hour.

To calculate the remaining portion of the artwork that was not scanned in the first two hours, we can subtract the portions that were scanned from the total artwork.

Let's assume that the total artwork is represented by the fraction 1 (or 100%).

In the first hour, 2/5 of the artwork was scanned, leaving 3/5 (or 60%) of the artwork remaining. In the second hour, 1/3 of the remaining artwork was scanned, leaving 2/5 (or 40%) of the artwork remaining.

Since the information about the third hour is unknown, we cannot determine the exact portion of the artwork that was scanned in that hour. However, we can say that the portion scanned in the third hour is less than or equal to the remaining 2/5 (or 40%) of the artwork.

Therefore, the portion of the artwork that was scanned on the scanner in the third hour is less than or equal to 2/5 (40%).