In a school, students decide to plant trees in and around the school to reduce air pollution. It was decided that the number of trees, that each section of each class will plant, will be double of the class in which they are studying. If there are 1 to 12 classes in the school and each class has two sections, find how many trees were planted by the students.
Answers
The number of trees planted by the students is 312
Step-by-step explanation:
Step 1 :
Given,
Number of trees which each class plants = 2 * the class in which they study
There are 2 classes in each section.
Step 2 :
Number of trees which 1 section of class 1 planted = 1 * 2
Number of trees which 2 sections of class 1 planted = 1 * 2 * 2
Number of trees which 1 section of class 2 planted = 2 * 2
Number of trees which 2 sections of class 2 planted = 2 * 2 * 2
Following the pattern we have ,
Number of trees which 1 section of class n planted = n * 2
Number of trees which 2 sections of class n planted = n * 2 * 2
Step 3 :
There are 1 to 12 classes
So
The total number of trees planted is (1+2+3+4+5+6+7+8+9+10+11+12) *2 *2 = 78* 4 = 310
Step 4 :
Answer:
The number of trees planted by the students is 312
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