Question

On the world environment day tree plantation programme was arranged on a land which is triangular in shape. Trees are planted such that in the first row there is one tree, in the second row there are two trees, in the third row three trees and so on. Find the total number of trees in the 25 rows. Solve the word problem

Answer 1

This is correct answer

Answer 2

Dear student -

● Answer -
325 trees

● Explanation -
According to problem, each row contains same no of trees as its row number.

Thus, total no of plants in 25 rows is calculated by -
Sn = 1 + 2 + 3 + .... + 25

Using formula Sn=n(n+1)/2
Sn = 25 × 26 / 2
Sn = 325

Total 325 tress are planted during tree plantation program.

Thanks for asking..