Question

Гномы одной горной пещеры решили помочь великану собрать яблоки. В первый день они работали 6 часов,а во второй - на 1 час больше,чем в третий день.Сколько часов работали гномы во второй день и сколько - в третий, если всего за три дня они отработали 15 часов. Надо решить без деления , потому что второй класс.

Answer 1

Пусть в третий день гномы работали х часов, во второй (х+1),
6+х+х+1=15,   х+х=15-1-6=14-6=8=4+4, т е х=4 часов работали гномы в
3-й день,  х+1=4+1=5 часов во 2-й

Answer 2

1-6 ч
2-х+1       
3-х
Всего-15 ч
6+х+х+1=15
2х+7=15
2х=15-7
2х=8
х=8:2
х=4(ч)-третий день
4+1=5(ч)-второй день
Проверка:4+5+6=15(ч)

Answer 3

Problem Analysis

The problem states that a group of gnomes in a mountain cave decided to help a giant collect apples. On the first day, they worked for 6 hours, and on the second day, they worked for 1 hour more than on the third day. The total hours worked by the gnomes over three days is 15 hours. We need to determine how many hours the gnomes worked on the second day and how many hours they worked on the third day.

Solution

Let's assume that the gnomes worked for x hours on the third day. According to the problem, they worked for 1 hour less on the second day, so they worked for x - 1 hours on the second day.

The total hours worked by the gnomes over three days is 15 hours. Therefore, we can write the equation:

6 + (x - 1) + x = 15

Simplifying the equation, we get:

2x + 5 = 15

Subtracting 5 from both sides of the equation, we have:

2x = 10

Dividing both sides of the equation by 2, we find:

x = 5

Therefore, the gnomes worked for 5 hours on the third day and 4 hours on the second day.

Answer

The gnomes worked for 4 hours on the second day and 5 hours on the third day.

Explanation

To solve this problem, we used algebraic equations to represent the given information and find the values of the unknown variables. By setting up an equation based on the given conditions and simplifying it, we determined that the gnomes worked for 4 hours on the second day and 5 hours on the third day.