Question

In a row of trees, one tree is fifth from either end of the row. How many trees are there in the row?
(1) 8
(2) 9
(3) 10
(4) 11

Answer 1

3) 9

because its 5 is the median number in a row of 9 trees, easy way to find it is do

(Nth Position * 2) - 1

Answer 2

Answer: 9 trees

Solution:

In a row of trees, one tree is fifth from either end of the row.

Since there is a tree in the row which is in the Mid of the Row from both ends.

It is only possible when there are odd number of trees in the row; This option 1) and 3) get eliminate.

Now If that tree is 5th from each end,that means there would be 9 trees,


1⃣2⃣3⃣4⃣5⃣4⃣3⃣2⃣1⃣

1⃣2⃣3⃣4⃣5⃣6⃣7⃣8⃣9⃣

Hope it helps you.