Question

Перед школой посадили 12 лип и 18 берёз какую часть всех деревьев составляют липы, а какую берёзы

Answer 1

12+18=30 всего деревьев

липы составляют 12/30=2/5 от всех деревьев

березы 18/30=3/5

Answer 2

Calculating the Proportion of Trees

To calculate the proportion of linden and birch trees, we can use the total number of trees planted in front of the school, which is 30 (12 linden trees + 18 birch trees).

Proportion of Linden Trees

The proportion of linden trees can be calculated by dividing the number of linden trees by the total number of trees and then multiplying by 100 to get the percentage.

Proportion of Linden Trees = (Number of Linden Trees / Total Number of Trees) * 100

Using the given information: Proportion of Linden Trees = (12 / 30) * 100 = 40%

Proportion of Birch Trees

Similarly, the proportion of birch trees can be calculated using the same formula.

Proportion of Birch Trees = (Number of Birch Trees / Total Number of Trees) * 100

Using the given information: Proportion of Birch Trees = (18 / 30) * 100 = 60% Therefore, the linden trees make up 40% of all the trees, while the birch trees make up 60% of the total trees planted in front of the school.