Question

The sun school as 1 to 10 standard the school community decided to plant tree such that each standard will plant according to standard boys and girl's separately and each class as 4 section find the total number trees planted ​

Answer 1

Answer:

Number of plants planted by class 1 = 2 (class 1x 2 sections)

= 2 x 1 x 2 = 4 tress Similarly, number of plants planted by

class 2 = 2 (class 2 x 2 sections)

= 2 × 2 × 2 = 8 trees

We now know, a = 4 and d = 4

Number of classes, n = 12

Total number of plants planed = Sum of AP = S₁2

S(n) = n/2(2a + (n - 1)d)

S(n) = 12/2 + (2 x 4 +(12-1)4)

→ S(n) = 6(8 +44)

→ S(n) = 6 x 52

S(n) = 312 trees

Hence, 312 trees were planted by the student.

Values :

Environmental friendly

Social awareness

Sense of responsibility towards the society.