Question

Помогите решить задачу с схемой три студенческих отряда посадили 2800 деревьев . 1 отряд посадил 40 % всех деревьев , 2 отряд 28 % .сколько деревьев посадил третий отряд

Answer 1

Всего - 2800 деревьев
1 отряд - посадил 40% всех деревьев(0,40) 2800*0,40 = 1120
2 отряд - посадил 28% всех деревьев(0,28) 2800*0,28 = 784
3 отряд - посадил 32% всех деревьев(0,32) 2800*0,32 = 896
Ответ: 3-ий отряд посадил 896 деревьев

Answer 2

Solving the Tree Planting Problem

To solve the problem, we can use the information provided about the percentage of trees planted by the first and second student groups to calculate the number of trees planted by the third student group.

Total number of trees planted: 2800

Percentage of trees planted by the first student group: 40%

Percentage of trees planted by the second student group: 28%

Calculating the Trees Planted by the Third Student Group

To find out how many trees the third student group planted, we can first calculate the total percentage of trees planted by the first and second student groups and then find the percentage of trees planted by the third student group.

Percentage of trees planted by the third student group: Let's denote the percentage of trees planted by the third student group as x.

The total percentage of trees planted by the first and second student groups is 40% + 28% = 68%.

To find the percentage of trees planted by the third student group, we can subtract the total percentage planted by the first and second groups from 100%: 100% - 68% = 32%

Therefore, the third student group planted 32% of the trees.

Calculating the Number of Trees Planted by the Third Student Group

To find the number of trees planted by the third student group, we can calculate 32% of the total number of trees planted.

Number of trees planted by the third student group: 32% of 2800 = (32/100) * 2800 = 896

Answer: The third student group planted 896 trees.