Question

In an orchard there are 17 guava trees in first row 15 in second 13 in third row & so on there are 3 guava tree in last row how many row are there in orchid

Answer 1

Answer:

accoesing to AP

a =17

d=15 -17=-2

an =3

n=?

an = a+ (n-1)d

3=17+(n-1)-2

3-17=(n-1)-2

-14=(n-1)-2

-14/-2=(n-1)

7=n-1

n=7+1

n=8

Answer 2

Answer:

accoesing to AP

a =17

d=15 -17=-2

an =3

n=?

an = a+ (n-1)d

3=17+(n-1)-2

3-17=(n-1)-2

-14=(n-1)-2

-14/-2=(n-1)

7=n-1

n=7+1

n=8

Step-by-step explanation: