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.
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"in" (and any subsequent words) was ignored because we limit queries to 32 words.
Step-by-step explanation:
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.
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