Question

Улитка ползет вверх на дерево. Днем она заползает на 7 метров, а за ночь скатывается на 3 метра.За сколько дней улитка заползет с подножья на крону дерева, если его высота 19 метров?

Answer 1

За 4 дня, так как днем он на 7 метров поднимается ночью сползает на 3. Получается в сутки он поднимается на 4 метра, а на последний день он поднимается на все 7 метров 

Answer 2

Calculation of the Snail's Journey

To calculate the number of days it will take for the snail to crawl from the base to the top of the tree, we need to determine how many times the snail crawls up during the day and rolls back down at night.

Let's break down the snail's journey:

- During the day, the snail crawls up 7 meters. - At night, the snail rolls back down 3 meters.

We need to find out how many times the snail will crawl up and roll back down until it reaches the top of the tree, which is 19 meters high.

Calculation Steps

1. Calculate the net distance the snail covers each day by subtracting the distance it rolls back down from the distance it crawls up: - Net distance = Distance crawled up - Distance rolled back down - Net distance = 7 meters - 3 meters - Net distance = 4 meters

2. Calculate the number of days it will take for the snail to reach the top of the tree by dividing the total height of the tree by the net distance covered each day: - Number of days = Total height of the tree / Net distance covered each day - Number of days = 19 meters / 4 meters - Number of days = 4.75 days

Since we cannot have a fraction of a day, we need to round up to the nearest whole number. Therefore, it will take the snail approximately 5 days to crawl from the base to the top of the tree.

Please note that this calculation assumes the snail's crawling and rolling behavior remains consistent throughout the entire journey.