Question

In garden there are some rows
and columns, the of trees in a
row is greater than the each
column by 10. Find the
trees in each row if there are
total 200 no. of trees.
Plz answer this question as soon as possible by quadratic equation method​

Answer 1

Answer:

Let there be m rows and n columns.

Since, number of trees in rows is greater than columns by 10

thus, n−m=10 or m=n−10

nm=200

n(n−10)=200

n

2

−10n−200=0

n=

2

10±

100+800

n=

2

10±30

n=20,−10

Neglect the negative value, number of rows =20