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 tree, in the third row three trees and so on. Find the total number of trees in 25 rows.

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 there are three trees and so on. Then find the total number of trees in 25 rows.

Following is the pictrograph of different kinds of trees in a garden. Find the total number of trees in the garden.

There is an auditorium with 35 rows of seats. There are 20 seats in the first row, 22 seats in the second row, 24 seats in the third row and so on. Find the number of seats in the twenty second row .

There is an auditorium with 35 rows of seats. There are 20 seats in the first row, 22 seats in the second row, 24 seats in the third row and so on. Find the number of seats in the twenty second row .

1521 trees are planted in a garden in such a way that there are as many trees in each row as there are rows inthe garden. Find the number of rows and number of trees in each row.

19625 trees have been equally planted in 157 rows. Find the number of trees in each row.

There is an auditorium with 27 rows of seats. There are 20 seats in the first row, 22 seats in the second row, 24 seats in the third row and so on. Find the number of seats in 15th row and the total seats in the auditorium.

In a flower bed there are 23 rose plants in the first row, twenty one in the second row, nineteen in the third row and so on. There are five plants in the last row. How many rows are there in the flower bed?

In a flower bed there are 23 rose plants in the first row,twenty one in the second row, nineteen in the third row and so on.There are five plants in the last row.How many rows are there in the flower bed?

In a garden trees are planed in rows. The number of trees in each row is 5 less than the number of rows. If the total number of trees planted be 336, then find the numbner of trees planted in each row.