Question

Оператор до обеда набрал 1/2 всей рукописи, после обеда 1/3рукописи.К концу дня кму осталось набрать 7 страниц.Сколько страниц в рукописи?????? дам 50 баллов

Answer 1

1/2+1/3=3/6+2/6=5/6 сделал
1-5/6=1/6 осталось
7:1/6=7:6=42 стр в рукописи

Answer 2

1/2+1/3=5/6 набрал
1-5/6=1/6 осталось
7:1/6=7*6=42стр.в рукописи

Answer 3

To solve this problem, let's break it down step by step.

Let's assume the total number of pages in the manuscript is represented by "x".

According to the information given, the operator typed half of the manuscript before lunch, which is equal to (1/2) * x.

After lunch, the operator typed one-third of the manuscript, which is equal to (1/3) * x.

By the end of the day, the operator had 7 pages left to type.

To find the total number of pages in the manuscript, we can set up the following equation:

(1/2) * x + (1/3) * x + 7 = x

To solve this equation, we can combine the fractions:

(3/6) * x + (2/6) * x + 7 = x

Simplifying the equation:

(5/6) * x + 7 = x

Subtracting (5/6) * x from both sides:

7 = (1/6) * x

Multiplying both sides by 6 to isolate x:

42 = x

Therefore, the manuscript consists of 42 pages.